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Crypto fee calculator

Three calculators: the real cost of buying on an exchange, a Bitcoin network fee, and an Ethereum gas fee. Enter the numbers your exchange or wallet shows you.

Buying on an exchange

An app can show "no fee" and still charge you through a worse price. Lesson 15 explains spread and trading fees.

Amount you spend ($) Market price of one coin ($)From an independent price site. Price you are offered ($)Leave equal to the market price if there is no spread. Trading fee (%) Fixed fee ($) Withdrawal fee ($, optional)To move the coins to your own wallet.

RESULT

Total cost of the purchase–

As a share of what you spend–

Cost of the spread–

Trading and fixed fees–

Withdrawal fee–

Coins you receive–

Bitcoin network fee

A Bitcoin fee depends on the size of the transaction in data, not on the amount sent. Lesson 32 explains why.

Fee rate (satoshis per virtual byte)Your wallet suggests one. Transaction size (virtual bytes)141 is a simple payment from one modern (SegWit) address with change. Price of one bitcoin ($) Amount you are sending ($, optional)

RESULT

Network fee–

In satoshis–

In bitcoin–

As a share of the amount sent–

Ethereum gas fee

The fee is gas used × (base fee + tip). A plain transfer of ETH uses 21,000 gas. Tokens and smart contracts use more, and your wallet shows the estimate.

Gas used (units) Base fee (gwei) Tip (gwei) Price of one ETH ($)

RESULT

Gas fee–

In gwei–

In ETH–

Part that is burned (base fee)–

Why small purchases cost more

A fixed fee weighs most on a small purchase. A $1 fee on a $10 purchase is 10%. The same fee on $200 is 0.5%. If you buy on a schedule, fewer and larger purchases can cost less in total.

Three things to remember about network fees

You pay in the network's own coin. Sending a token on Ethereum needs ETH for gas.
Failed transactions still cost. If a transaction runs out of gas, the fee is still charged.
Fees change by the minute. The same action can cost several times more at a busy moment.

Read the full lessons: Lesson 15: Order types and trading fees and Lesson 32: Network fees and gas.

This page does not look up live prices and does not save or send what you type. It is arithmetic, not advice: prices can fall, and you can lose everything you put in.

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