How do I use the Bitcoin Calculator?

Click "Fetch live price" to get the current BTC/USD rate, or enter a custom price manually. Enter a value in the Bitcoin (BTC) field to see the equivalent in USD, satoshis, and mBTC. Alternatively, enter a USD amount to see how much Bitcoin that buys at the current price. Use the satoshis or mBTC fields for smaller unit conversions. Check the quick reference section for handy conversion benchmarks.

Is the Bitcoin Calculator free?

Yes, the Bitcoin Calculator is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

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calculator

Bitcoin Calculator

Convert between Bitcoin (BTC), satoshis, mBTC, and USD. Fetch live prices or enter custom values.

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Bitcoin calculator

Convert between Bitcoin and fiat currencies

Enter a Bitcoin amount or dollar amount to see the conversion. Set a custom BTC price or use the latest market price.

BTC price ($) Bitcoin (BTC) USD ($)

Satoshis (sats) mBTC (millibitcoin)

Quick reference

1 BTC =

—

1 BTC =

100,000,000 sats

1 sat =

—

$1 =

— sats

How to use

How to Use the Bitcoin Calculator

1 Click "Fetch live price" to get the current BTC/USD rate, or enter a custom price manually.
2 Enter a value in the Bitcoin (BTC) field to see the equivalent in USD, satoshis, and mBTC.
3 Alternatively, enter a USD amount to see how much Bitcoin that buys at the current price.
4 Use the satoshis or mBTC fields for smaller unit conversions.
5 Check the quick reference section for handy conversion benchmarks.

The Bitcoin Calculator converts between BTC, USD, satoshis, and millibitcoin (mBTC) in real time. It can fetch the latest market price from CoinGecko or use a custom price you enter. One Bitcoin equals 100 million satoshis, and one mBTC equals 0.001 BTC. The calculator handles all these conversions instantly as you type.

Satoshis are the smallest unit of Bitcoin, named after Bitcoin's creator Satoshi Nakamoto. When Bitcoin's price is high, people often discuss prices in satoshis (sats) rather than full BTC. For example, at $100,000 per BTC, one satoshi equals $0.001. The quick reference panel shows these relationships at whatever price you set.

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