Fox ⇄

Currency, crypto and unit converter with bank rates and a calculator in the amount field.

165 currencies and 24 cryptocurrencies on one screen. Type an amount in any of them — every other one recalculates as you type.

English · Русский

Open the site, add your currencies once. After that: tap an amount, type — done.

• Currencies and crypto together — 165 world currencies, gold, silver, platinum and palladium, plus 24 cryptocurrencies: BTC, ETH, USDT, USDC, TON, BNB, SOL, XRP, DOGE, TRX, LTC and more. Every pair works both ways: BTC → RUB, USDT → EUR, TON → TRY.
• Calculator right in the amount field — + − × ÷ and percentages (100 + 10% = 110). The result appears in every currency while you type. A compact keypad takes half the screen, so the list stays visible.
• The ruble at the Bank of Russia rate — every pair with RUB uses the official CBR rate, crypto included (coin → USD → RUB at the CBR rate). Other currencies come from the ECB and central banks, crypto from live Binance prices refreshed every minute.
• Bank rates — buy and sell prices of 71 banks and exchange offices in 20+ countries, online and cash; the best one is marked.
• Where to change cash — before a trip, see what is cheaper: buy the money at home, or carry dollars, euros or rubles and change there.
• Exchange route — RUB → KGS → USD and so on, each step at its own rate (central bank, bank, world or your own), with the total at the end.
• Search the way you think — by country, currency name or code, in Russian and English: “лира”, “Turkey”, “TRY”, “биток”, “эфир”, “тон”.
• Gestures — swipe a card right to make it the main currency, left to remove it, long-press and drag to reorder, pinch for tiles.
• Units too — 97 quantities and 700+ units: length, weight, temperature, pressure, data, cooking, old Russian and Japanese measures. Search by symbol or name; tap any card and every unit follows.
• Charts — any pair from one week to ten years; drag a finger along the line to see the rate on a given day.
• An app, not a page — installs on iPhone and Android, works offline with the last saved rates, dark and light themes, Russian and English.

Get started

1. Open fxbyfox.com
2. iPhone: Safari → Share → Add to Home Screen. Android: Chrome → Install app.
3. Tap + and add your currencies

Free, no sign-up, no trackers or analytics. Rates: Frankfurter (ECB and central banks, RUB by the Bank of Russia) and Binance for crypto. Official end-of-day rates for currencies, market prices for crypto — not a trading terminal. This repository hosts the page only.

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_{Keywords: currency converter, crypto converter, unit converter, bank exchange rates, cash exchange rates, bitcoin to ruble, USDT to RUB, CBR exchange rate, currency calculator, PWA currency app, offline exchange rates.}