Educational tool

Bitcoin Fee Estimator

Explore how transaction size and fee rate affect a Bitcoin network fee. This tool does not predict network conditions or guarantee confirmation times.

Transaction size

Custom vbytes

Fee rate: 15 sat/vB

Illustrative examples only, not live estimates or recommendations.

Estimated network fee3,375 sats0.00003375 BTC

Fee = transaction size × fee rate. Fiat values are approximate and can change quickly.

How fees and confirmations work

Fees pay for limited block space and are generally based on transaction size in virtual bytes, not the amount of bitcoin sent. Higher demand can increase fees. Confirmations depend on network conditions and are not guaranteed by a chosen fee.

Example

A standard 225 vB transaction at 15 sat/vB: 225 × 15 = 3,375 sats, or 0.00003375 BTC. Fiat value is approximate.

Fee journey

1. User creates transaction
2. Fee selected
3. Transaction enters mempool
4. Miner selects transactions
5. Block confirmation
6. Additional confirmations

Common misconceptions

Fees do not simply depend on the bitcoin amount sent. Higher fees do not guarantee immediate confirmation, wallets may calculate fees differently, fees do not always stay high, and miners do not set an individual user's chosen fee.

Continue Learning

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