Bitcoin fee estimator
Next block
1sat/vB
≈ $0.1225 · ~10 minutes
Within 30 minutes
0.61sat/vB
≈ $0.0756 · ~3 blocks
Within an hour
0.34sat/vB
≈ $0.0426 · ~6 blocks
Economy
0.2sat/vB
≈ $0.0252 · hours to a day
Wallets that only accept whole numbers: pay 1 sat/vB for the next block, 1 for 30 minutes, 1 for an hour.
What a transaction costs
Common transaction shapes at each target.
| Transaction | Size | Next block | Within 30 minutes | Within an hour | Economy |
|---|---|---|---|---|---|
| Native SegWit payment1 input, 2 outputs | 141 vB | $0.1225141 sats | $0.075687 sats | $0.042649 sats | $0.025229 sats |
| Taproot payment1 input, 2 outputs | 154 vB | $0.1338154 sats | $0.082695 sats | $0.046153 sats | $0.026931 sats |
| Nested SegWit payment1 input, 2 outputs | 166 vB | $0.1442166 sats | $0.0895103 sats | $0.049557 sats | $0.029534 sats |
| Legacy payment1 input, 2 outputs | 226 vB | $0.1964226 sats | $0.1208139 sats | $0.067878 sats | $0.0446 sats |
| Consolidation10 SegWit inputs into 1 | 722 vB | $0.6274722 sats | $0.3867445 sats | $0.2146247 sats | $0.126145 sats |
Projected blocks
Where transactions at each fee rate would land if no new ones arrived.
Next block
~0.41
sat/vB median
0.36 – 124 sat/vB
6,502 txs · full
$819.11 in fees
in ~10 min
Block +2
~0.32
sat/vB median
0.32 – 0.36 sat/vB
7,170 txs · full
$280.29 in fees
in ~20 min
Block +3
~0.32
sat/vB median
0.3 – 0.32 sat/vB
6,523 txs · full
$271.58 in fees
in ~30 min
Block +4
~0.3
sat/vB median
0.27 – 0.3 sat/vB
343 txs · full
$260.47 in fees
in ~40 min
Block +5
~0.28
sat/vB median
0.25 – 0.3 sat/vB
3,054 txs · full
$244.43 in fees
in ~50 min
Block +6
~0.24
sat/vB median
0.22 – 0.26 sat/vB
2,484 txs · full
$206.65 in fees
in ~60 min
Block +7
~0.22
sat/vB median
0.21 – 0.22 sat/vB
2,147 txs · full
$186.96 in fees
in ~70 min
Block +8
~0.13
sat/vB median
0.1 – 0.21 sat/vB
56,093 txs · full
$3,967.33 in fees
in ~80 min
Fee calculator
Describe your transaction to see its size and what it would cost.
Estimated size
141 vbytes
| Target | Rate | Fee |
|---|---|---|
| Next block | 1 sat/vB | 141 sats$0.1225 |
| Within 30 minutes | 0.61 sat/vB | 87 sats$0.0756 |
| Within an hour | 0.34 sat/vB | 49 sats$0.0426 |
| Economy | 0.2 sat/vB | 29 sats$0.0252 |
Sizes assume standard signatures; real transactions can differ by a few vbytes. Your wallet shows the exact figure before you send.
Moving coins on Ethereum or an L2 instead? See the gas tracker.
Network data: mempool.space and Blockstream. Refreshed every minute.
Dollar amounts use the Bitcoin price from Data provided by CoinGecko
Questions
What is sat/vB?
Satoshis per virtual byte. Bitcoin fees are paid per unit of block space, not per amount sent: a transaction’s fee is its size in vbytes times the rate. Sending 0.001 BTC or 100 BTC costs the same if the transactions are the same size.
Why can fees be below 1 sat/vB now?
Since Bitcoin Core 29.1 (2025) nodes relay transactions paying as little as 0.1 sat/vB by default. Many wallets still round up to 1 sat/vB, so the “precise” tiers here can be lower than what your wallet offers.
How do I pay less?
Use a Native SegWit or Taproot address (smaller inputs), send when the mempool is quiet (weekends are often cheaper), batch several payments into one transaction, and consolidate small coins when fees are low.
I already sent with too low a fee.
Use the transaction accelerator: it shows where your transaction sits in the mempool and exactly what fee would get it confirmed by replace-by-fee or child-pays-for-parent.