🔁 ConvertAny.app
Fast, simple unit converters — pick a tool below
ConvertAny.app is your all-in-one destination for fast, free unit conversions. Whether you need to convert kitchen measurements, currency rates, clothing sizes, or scientific units — every converter is just a click away. No sign-ups, no ads interrupting your workflow, just instant results in a clean, dark-mode-friendly interface.
What can you convert?
Our 19+ converters cover four main categories:
- Everyday measurements — length, weight, volume, temperature, speed, area, and pressure
- Cooking & baking — cups to milliliters, grams to ounces, oven temperatures, cooking conversions
- Money & data — currency converter (EUR/USD + more), crypto converter, data storage (KB/MB/GB/TB)
- Specialty tools — clothing size converter (EU/US/UK), Roman numerals converter, fuel economy (MPG ↔ L/100km), energy converter, time converter
Example: Baking a US recipe in Europe? Use our cups-to-mL converter to get exact metric measurements, and our oven temperature converter to switch from Fahrenheit to Celsius — no math required.
All converters use static reference rates (updated daily for currencies) and work entirely in your browser — no server calls, no tracking, no delays.
📏 Length Converter
Convert between meters, kilometers, feet, and miles instantly.
⚖️ Weight Converter
Convert between kilograms, grams, pounds, and ounces instantly.
🌡️ Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
🧪 Volume Converter
Convert between liters, milliliters, cups, gallons, and fluid ounces.
🚀 Speed Converter
Convert between km/h, mph, and knots instantly.
⚡ Energy Converter
Convert between calories, kilocalories, joules, and kilowatt-hours.
⏱️ Time Converter
Convert between hours, minutes, seconds, and days instantly.
💾 Data Converter
Convert between KB, MB, GB, and TB instantly.
💨 Pressure Converter
Convert between bar, psi, kPa, and atm instantly.
📐 Area Converter
Convert between m², ft², hectares, and acres instantly.
🔥 Oven Temperature Converter
Convert oven temperatures between Celsius, Fahrenheit, and Gas Mark.
🥤 Cups to mL Converter
Convert cups to milliliters and vice versa instantly.
💶 EUR to USD Converter
Convert Euros to US Dollars and vice versa (rate: 1 EUR = 1.144845 USD).
💰 Currency Converter
Convert between major world currencies. Static reference rates.
₿ Crypto Converter
Convert between Bitcoin, Ethereum and major fiat currencies. Static reference rates.
🍳 Cooking Converter
Convert between cups, tablespoons, teaspoons, milliliters and grams for cooking.
👕 Clothing Size Converter
Convert clothing sizes between EU, US and UK standards.
⛽ Fuel Economy Converter
Convert between miles per gallon (MPG), liters per 100km and kilometers per liter.
🏛️ Roman Numerals Converter
Convert numbers to Roman numerals and vice versa.
❓ Frequently Asked Questions
What is ConvertAny.app?
ConvertAny.app is a free online unit converter offering 19+ converters covering length, weight, temperature, volume, speed, energy, time, data, pressure, area, currency, crypto, cooking, clothing sizes, Roman numerals, fuel economy, and oven temperatures. No sign-ups, no ads in the tool interface — just instant results.
Are the currency and crypto rates up to date?
Yes — our EUR/USD, currency converter, and crypto converter use static reference rates that are updated daily. While not real-time ticker data, they are accurate enough for everyday budgeting, shopping, and general reference.
Does ConvertAny.app work on mobile?
Absolutely. ConvertAny.app is fully responsive and works on any device — phone, tablet, or desktop. All converters are designed with touch-friendly inputs and automatic result updates as you type.
Is there a limit on how many conversions I can do?
No limits at all. Every converter runs entirely in your browser — there is no server, no database, no rate limiting. Convert as many times as you like, as fast as you like.
Do I need an account or to share my data?
No. ConvertAny.app does not require any account, email, or personal information. All conversions happen locally in your browser — we never see, store, or transmit your input values.