Complete calculator
A visible expression with addition, subtraction, multiplication, division, percentages and sign change. Monetary calculations use Decimal.
Now available on the App Store
CoinCalc is a crypto calculator and converter app for iPhone and iPad. Enter an amount or expression, choose two coins and convert using public USDT quotes. Core tools are free, with no account or ads.
No account · no ads · no analytics · calculations stay on device

The formula, result and selected currency pair stay visible. CoinCalc never substitutes a missing quote with a made-up value and blocks conversion when a quote becomes stale.
A visible expression with addition, subtraction, multiplication, division, percentages and sign change. Monetary calculations use Decimal.
Public market quotes against USDT for popular coins, from Bitcoin, Ethereum and Solana to Monero, Chainlink, Avalanche and more.
Keep five selected currencies close. The calculator and core conversion experience remain free.
If data is unavailable or more than five minutes old, the app explains the market state instead of hiding it behind a fictional rate.
Original captures from the localized publication set. These show the running app in iPhone and iPad Simulator, without redrawn controls or substituted interface elements.


CoinCalc Pro unlocks an expanded workspace in the same app. Subscriptions are handled by StoreKit and tied to your Apple ID.
Calculator formulas and results never leave the device.
No advertising, analytics or user profiling.
Quotes use selected symbols; alerts use delivery details and the rules you create.
Short answers about CoinCalc's purpose, data and availability.
No. It does not execute trades, hold assets or connect to exchange accounts. It is an informational calculator and converter.
From Binance's public market-data API. Quotes can be delayed or unavailable and may differ from executable trading prices.
No CoinCalc account is required. Apple processes Pro purchases, and optional private sync works through iCloud on your Apple ID.
iPhone and iPad running iOS or iPadOS 16 or later. An internet connection is required for current quotes.
CoinCalc: Crypto Converter is available on the App Store for iPhone and iPad. Use the download button on this page.
Choose two coins, enter an expression on the keypad and convert using public quotes. Explore the guides to cross rates, fees and percentage changes below.
CoinCalc helps you calculate and reference the market without turning a simple task into a trading terminal.