how to tell how many bytes btc transaction is going to be?

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  • ThaWoj
    SBR Hall of Famer
    • 03-09-10
    • 6757

    #1
    how to tell how many bytes btc transaction is going to be?
    tried sending 200 bucks to 5dimes from blockchain this morning, purposely doubling the recommended send fee so that i wouldnt have a repeat of the 5 hour fiasco i had last week.

    2 hours later, 0 confirmations so i looked it up to see why and found out my transaction size was 521 bytes instead of the usual 260. So my fee was only 74S/B! I have 3 outputs and 2 inputs, I don't know why (probably why the transaction is 521 bytes?)

    is there a way to know how many bytes your transaction is going to be so that you can use the appropriate fee? is there a way to know how many outputs/inputs your transaction is going to have?
    Last edited by ThaWoj; 04-05-17, 12:57 PM.
  • raiders72001
    Senior Member
    • 08-10-05
    • 11077

    #2
    Originally posted by ThaWoj
    tried sending 200 bucks to 5dimes from blockchain this morning, purposely doubling the recommended send fee so that i wouldnt have a repeat of the 5 hour fiasco i had last week.

    2 hours later, 0 confirmations so i looked it up to see why and found out my transaction size was 521 bytes instead of the usual 260. So my fee was only 74S/B! I have 3 outputs and 2 inputs, I don't know why (probably why the transaction is 521 bytes?)

    is there a way to know how many bytes your transaction is going to be so that you can use the appropriate fee? is there a way to know how many outputs/inputs your transaction is going to have?
    You would have to use a coin control wallet such as Electrum. Rule of thumb is to add 30 cents or more to the blockchain.info default fee and you'll get in block 1, at most 2.
    Comment
    • ThaWoj
      SBR Hall of Famer
      • 03-09-10
      • 6757

      #3
      looking up the transaction on blocktrail shows it "contains dust" so i hope that doesnt slow it down even further. so frustrating.

      then on top of that im going to lose another 20 bucks because i get 10% on deposits within 24 hours after receiving cash back..have about one hour left...
      Comment
      • Optional
        Administrator
        • 06-10-10
        • 61172

        #4
        What's a 'control wallet' Raiders?

        I didn't know of a way to determine byte size before sending either.
        .
        Comment
        • ThaWoj
          SBR Hall of Famer
          • 03-09-10
          • 6757

          #5
          got it after 5 hrs and 9 minutes. gonna just always do a dollar from now on regardless of traffic/pools. some extra nickels and dimes are well worth the cost of not having a headache or being stressed.
          Comment
          • raiders72001
            Senior Member
            • 08-10-05
            • 11077

            #6
            Originally posted by Optional
            What's a 'control wallet' Raiders?

            I didn't know of a way to determine byte size before sending either.
            byte size = approximately 180 * inputs + 34 * outputs + 10.

            You can combine inputs by using a coin control wallet.
            Comment
            • TheMoneyShot
              BARRELED IN @ SBR!
              • 02-14-07
              • 28672

              #7
              Originally posted by raiders72001
              You would have to use a coin control wallet such as Electrum. Rule of thumb is to add 30 cents or more to the blockchain.info default fee and you'll get in block 1, at most 2.
              Great info here. I never thought these fees would reach around $1.00 per transaction? I know... I know... I shouldn't be bitching... unfortunately everything goes up in this world. If these fees ever reach $2.00+ I'm just going to shake my head.

              I was getting transactions confirmed within an hour at $0.15 a year ago.
              Comment
              • TheMoneyShot
                BARRELED IN @ SBR!
                • 02-14-07
                • 28672

                #8
                Wanted to thank Raiders72001 once again.

                Just did a Bitcoin transaction moments using Blockchain.

                Used the advanced "SEND" settings for the first time.

                Sent 2 transactions all at once... (first time... never did that either before)

                Entered the extra $0.30 cents. Then clicked send.

                A system "pop up" message came on my screen. It said "The fee you are sending is extremely high for this transaction we recommend using this fee. We believe your transaction will confirm in under 10 minutes." Click the blue box if you agree for this change.

                I said what the hell... I'll give it a try.

                First time ever... confirmed in exactly 9 minutes. Fee was only $0.84 (2 transactions) So what is that? Roughly $0.42 each?

                Not bad... not bad at all.

                Hope this helps a few posters out. Size of transaction was 555 Bytes FYI
                Comment
                • RudyRuetigger
                  SBR Aristocracy
                  • 08-24-10
                  • 65084

                  #9
                  Originally posted by TheMoneyShot
                  Wanted to thank Raiders72001 once again.

                  Just did a Bitcoin transaction moments using Blockchain.

                  Used the advanced "SEND" settings for the first time.

                  Sent 2 transactions all at once... (first time... never did that either before)

                  Entered the extra $0.30 cents. Then clicked send.

                  A system "pop up" message came on my screen. It said "The fee you are sending is extremely high for this transaction we recommend using this fee. We believe you transaction will confirm in under 10 minutes." Click the blue box if you agree for this change.

                  I said what the hell... I'll give it a try.

                  First time ever... confirmed in exactly 9 minutes. Fee was only $0.84 (2 transactions) So what is that? Roughly $0.42 each?

                  Not bad... not bad at all.

                  Hope this helps a few posters out. Size of transactions was 555 Bytes FYI
                  I don't know what this means.

                  you sent from blockchain to somewhere else..... you paid 84cents more and you got it through within 10min?
                  Comment
                  • TheMoneyShot
                    BARRELED IN @ SBR!
                    • 02-14-07
                    • 28672

                    #10
                    Originally posted by RudyRuetigger
                    I don't know what this means.

                    you sent from blockchain to somewhere else..... you paid 84cents more and you got it through within 10min?
                    No problem. I'll try to explain.

                    1. Click the "Send" button (near top of your blockchain page) and a pop up will appear.

                    2. Then click "Advanced Send" lower left side of pop up window.

                    3. Look closely at the lower part of window again... it will show you "Transaction Fee" with a set amount already entered. This is the expected Blockchain "default fee." But, majority of the posters at SBR are saying the transaction is still taking 4-6+ hours until confirmed. What Raiders72001 is suggesting... add $0.30 cents to that number that blockchain suggests. Naturally, you have to figure out the formula in BTC value. So, once I figured out the value... I entered what I believed the value was on that line. You can also enter multiple Bitcoin addresses in this menu. So, if you have 3 addresses.... you can enter all 3 in one transaction.

                    4. I clicked the Send button once I entered all the Bitcoin addresses and amounts etc.

                    5. A blockchain systems menu popped up and said the amount I entered was extremely high. We suggest using this amount in BTC. If you accept... click the BLUE BOX. It also stated... we anticipate your transaction to be confirmed in under 10 minutes.

                    6. So I said what the hell and clicked it. Hoping it wouldn't take 1-2 hours to confirm. Hopefully, under 30 minutes because I had to get a few things done.

                    7. Finally confirmed in 9 minutes.

                    8. You can verify any transaction at Blockchain for your reference. Just click the "info" in your transaction history at blockchain. It will tell you fees for the transaction, bytes, and how long it took to be confirmed.

                    9. To answer your question... I only paid $0.84 cents total. (2 Transactions simultaneously)

                    Hope this helps.
                    Last edited by TheMoneyShot; 04-11-17, 01:56 PM.
                    Comment
                    • TheMoneyShot
                      BARRELED IN @ SBR!
                      • 02-14-07
                      • 28672

                      #11
                      What's also strange about the default fee at Blockchain earlier today... the default for the fees were $0.97 according to blockchain. I changed $0.97 to $1.27 like Raiders suggested.

                      Once I clicked send... that's when the systems menu popped up and said the Miner's fee was too high. Click the "BLUE BOX" for our suggested fee. Well... their suggested fee came out to be $0.84 ($0.13 lower than their original default fee.)

                      I'm still scratching my head on this one fellas.

                      You mean all along we should of been clicking the "Advanced Send" button?


                      I've always used Blockchain's default fee. Never tried the Advanced Send feature until today. Possibly just luck of the draw?

                      Crazy.
                      Comment
                      • Kaabee
                        SBR MVP
                        • 01-21-06
                        • 2482

                        #12
                        Remember that nobody gets confirmed if there is no block mined. You got confirmed in 9 minutes because a block was mined and you had an appropriate fee. You can put a $100 fee and if there is no block mined for the next 45 minutes you aren't getting confirmed.
                        Comment
                        • raiders72001
                          Senior Member
                          • 08-10-05
                          • 11077

                          #13
                          Originally posted by TheMoneyShot
                          What's also strange about the default fee at Blockchain earlier today... the default for the fees were $0.97 according to blockchain. I changed $0.97 to $1.27 like Raiders suggested.

                          Once I clicked send... that's when the systems menu popped up and said the Miner's fee was too high. Click the "BLUE BOX" for our suggested fee. Well... their suggested fee came out to be $0.84 ($0.13 lower than their original default fee.)

                          I'm still scratching my head on this one fellas.

                          You mean all along we should of been clicking the "Advanced Send" button?


                          I've always used Blockchain's default fee. Never tried the Advanced Send feature until today. Possibly just luck of the draw?

                          Crazy.
                          Yes, always use advanced send.
                          Comment
                          • raiders72001
                            Senior Member
                            • 08-10-05
                            • 11077

                            #14
                            Originally posted by Kaabee
                            Remember that nobody gets confirmed if there is no block mined. You got confirmed in 9 minutes because a block was mined and you had an appropriate fee. You can put a $100 fee and if there is no block mined for the next 45 minutes you aren't getting confirmed.
                            The mathematical difficulty of each block is set at 10 minutes.
                            Comment
                            • Kaabee
                              SBR MVP
                              • 01-21-06
                              • 2482

                              #15
                              Originally posted by raiders72001
                              The mathematical difficulty of each block is set at 10 minutes.
                              Of course. But it could be 5 seconds or it could be 1 hour.
                              Comment
                              • RudyRuetigger
                                SBR Aristocracy
                                • 08-24-10
                                • 65084

                                #16
                                thanks tms,

                                are you still using bitpay?
                                Comment
                                • RudyRuetigger
                                  SBR Aristocracy
                                  • 08-24-10
                                  • 65084

                                  #17
                                  do you guys do the advanced settings ONLY when sending to yourself, or do you do it when sending to books as well?
                                  Comment
                                  • ThaWoj
                                    SBR Hall of Famer
                                    • 03-09-10
                                    • 6757

                                    #18
                                    i dont get what im doing wrong

                                    i sent from blockchain to 5dimes this morning. default fee was .0002304. added 30 cents on the advanced send to make it 5304. got the warning saying unusually high fee blah blah estimated confirm time 10 minutes.

                                    my transaction size ended up being 632 bytes with 4 outputs and the fee is listed as only 83.924 sat/B WTF!

                                    so now of course bitcoinfees21 is saying it could take 70-840 minutes to confirm!
                                    Comment
                                    • TheMoneyShot
                                      BARRELED IN @ SBR!
                                      • 02-14-07
                                      • 28672

                                      #19
                                      Originally posted by Kaabee
                                      Remember that nobody gets confirmed if there is no block mined. You got confirmed in 9 minutes because a block was mined and you had an appropriate fee. You can put a $100 fee and if there is no block mined for the next 45 minutes you aren't getting confirmed.
                                      I'm learning as a go along... and definitely I'm not an expert. You make a good point. But if a block isn't being mined... if you added the extra fee... wouldn't you be next in line regardless? So in all theory... if the block wasn't mined... for an hour.... you'd still be next in line... and the person that didn't put up the extra fee wouldn't be next in line... would be awfully long delay?
                                      Originally posted by raiders72001
                                      Yes, always use advanced send.
                                      Thank you sir.

                                      Originally posted by RudyRuetigger
                                      thanks tms,

                                      are you still using bitpay?
                                      No problem. The main man here is RAIDERS... he knows a lot! I've learned practically everything from him. Yes, I still use Bitpay and it's the best thing ever created. So many things you can do with the card. Another poster indicated he takes the card to Walmart and purchases 1-2k worth of M.O.'s and then takes those M.O.'s and runs them through his bank. So if you didn't want to use the card to swipe at businesses etc... you could get your funds this way. Not a bad idea. Each M.O. is $0.70. The only thing bad about that... shows extra income on bank statement. I tried it myself once and it worked. No glitches... no errors... card works like magic. This new idea about the Coinbase card that's out now... I wouldn't trust those jokers.

                                      Originally posted by RudyRuetigger
                                      do you guys do the advanced settings ONLY when sending to yourself, or do you do it when sending to books as well?
                                      I typically just use the default. But, majority of the sportsbooks want the funds within 15 minutes... otherwise they will adjust the difference. Longest delay I ever had was roughly 6-7 hrs. I sent 3k to the Bitpay card about a week ago. Bitcoin rate fluctuated so many times during that 6 hour delay. Eventually... it dropped $40 in value by the time Bitpay received it. I figured Bitpay would adjust the difference because... why would they take a loss on it? Right? But they gave me the full amount. I was very surprised by this.
                                      Comment
                                      • TheMoneyShot
                                        BARRELED IN @ SBR!
                                        • 02-14-07
                                        • 28672

                                        #20
                                        About to send a transaction to a book. Should be a good test today. 30,000+ unconfirmed on the network and going to send $0.30 more than what Blockchain suggests. We'll see when it's confirmed.
                                        Comment
                                        • TheMoneyShot
                                          BARRELED IN @ SBR!
                                          • 02-14-07
                                          • 28672

                                          #21
                                          I did advanced send once again... Then that blue box appeared... and blockchain said I was sending too much. I allowed blockchain to change it for me... it ended up being $0.60 for 1 transaction and 373 bytes.

                                          33 Minutes to confirm. Network had 30,000+ unconfirmed.

                                          Still not bad.
                                          Comment
                                          • Kaabee
                                            SBR MVP
                                            • 01-21-06
                                            • 2482

                                            #22
                                            Yep front of the line. Just no telling when the line gets to move.
                                            Comment
                                            • RudyRuetigger
                                              SBR Aristocracy
                                              • 08-24-10
                                              • 65084

                                              #23
                                              I sent 1400 to coinbase....said they were sending either 28c or like 42c...I raised it to 1.30 or so....my popup said this is unusually high, both confirmations should be around 10 minutes anyway... I left it at 1.30 though...
                                              Comment
                                              • RudyRuetigger
                                                SBR Aristocracy
                                                • 08-24-10
                                                • 65084

                                                #24
                                                think it took 19min
                                                Comment
                                                • ThaWoj
                                                  SBR Hall of Famer
                                                  • 03-09-10
                                                  • 6757

                                                  #25
                                                  Added 30 cents to the default fee just now on my 135 dollar transaction to nitrogen from blockchain.

                                                  Transaction showing up as 635 bytes with 4 outputs, fee is 83.921sat/byte.

                                                  There's gotta be an easier way to do this. I like blockchain and the smooth app so I hate to switch to something else.
                                                  Comment
                                                  • RudyRuetigger
                                                    SBR Aristocracy
                                                    • 08-24-10
                                                    • 65084

                                                    #26
                                                    I don't know anything about these bytes and 4 outputs you speak of


                                                    I only know I doubled the fee, got $600 in 5dimes in 30min

                                                    don't know if that's avg or not
                                                    Comment
                                                    • Optional
                                                      Administrator
                                                      • 06-10-10
                                                      • 61172

                                                      #27
                                                      Yesterday I did the same Rudy, and it was there in about 5 mins.

                                                      Would be interesting to know what percentage of transactions end up severely delayed.
                                                      .
                                                      Comment
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