Crypto Unit Converter
A simple, open-source, client-side converter between the denominations of Monero, Bitcoin, and Litecoin. Type a value into any field and the rest update instantly. All math is done with exact integer arithmetic, so there is never any rounding error. Nothing leaves your browser.
FAQs
What is this site?
This site converts between the different denominations of a single cryptocurrency, for example between XMR and piconero, or between BTC and satoshi. Pick a coin, type a value into any field, and every other denomination updates at once.
Why is it more accurate than other converters?
Many converters multiply by a decimal factor in floating point, which introduces tiny rounding errors at the precision crypto uses (12 decimals for Monero, 8 for Bitcoin and Litecoin). This tool converts everything to a whole number of atomic units (piconero, satoshi, litoshi) using exact integer arithmetic, so the result is always precise.
What are the atomic units?
The smallest indivisible unit of each coin: 1 XMR = 1,000,000,000,000 piconero, 1 BTC = 100,000,000 satoshi, and 1 LTC = 100,000,000 litoshi. Anything smaller than one atomic unit cannot exist, so finer input is truncated.
Can I convert a coin that is not listed?
Yes. Choose Custom and enter the coin's atomic-unit decimals (for example 18 for most ERC-20 tokens, 9 for SOL, 6 for USDC). The converter builds its whole-unit and smaller denominations automatically.
Can it convert between coins, like XMR to BTC?
No. That would require a live exchange rate, which means contacting a third party. This tool only converts between denominations of the same coin, entirely offline.
Do you log anything I enter?
No. This site is a static page that runs entirely client-side. Nothing you type is sent anywhere, so it works offline.
Can I link to a prefilled conversion?
Yes. Add ?coin=monero&value=1.5 to the URL (coin can be monero, bitcoin, or litecoin), or use the Copy link button, and the conversion is filled in on load.
Is this site open source?
Yes! You can find the full source code on GitHub.
Disclaimer: This tool is provided "as is" with no warranties. Use at your own risk. Always double-check critical amounts before sending any funds.