Crypto Unit Converter is a free, browser-based tool built for developers and crypto users converting between denominations of the same asset.
It converts within one asset's own units (e.g. BTC to satoshi, or ETH to Gwei). Converting between different assets, like BTC to ETH, needs a live market price and isn't covered here.
How to use the Crypto Unit Converter
- Enter the amount you want to convert.
- Choose the unit you're converting from and to.
- Click Convert — the result appears instantly.
- Stick to units of the same asset (all-BTC or all-ETH) since no live exchange rate is used.
Why use FreeToolsNets's Crypto Unit Converter?
- 100% free, with no usage limits and no account required.
- Everything runs locally in your browser — nothing you type is uploaded or stored on a server.
- Works on desktop, tablet and mobile in any modern browser.
- No installation, no plugins, and no ads blocking the tool itself.
- Part of FreeToolsNets's Unit Converters collection.
Frequently asked questions
Can I convert BTC to ETH?
Not with this tool — that requires a live market exchange rate. This converts denominations within one asset only.
What is a satoshi?
A satoshi is the smallest unit of Bitcoin: 1 BTC = 100,000,000 satoshi.
What is Gwei?
Gwei is a common unit for Ethereum gas prices: 1 ETH = 1,000,000,000 Gwei.
Is this tool free to use?
Yes, completely free on FreeToolsNets, with no sign-up and no limits.
Is my data sent to a server?
No. Everything runs locally in your browser using JavaScript — nothing you enter is uploaded anywhere.
Does it work on mobile?
Yes, the widget is fully responsive and works on phones, tablets and desktops.