Free Online Converters

Convert between any units instantly. Length, weight, temperature, volume, and more. No sign-up required.

📏 Measurement 🔬 Science 💻 Digital 🏠 Everyday 🔢 Math & Numbers

📏

Measurement

4 tools

📐

Length Converter

Convert between meters, feet, inches, miles, kilometers, and more.

⚖️

Weight Converter

Convert between kilograms, pounds, ounces, grams, and stones.

📐

Area Converter

Convert between square meters, square feet, acres, and hectares.

🧪

Volume Converter

Convert between liters, gallons, cups, milliliters, and fluid ounces.

🔬

Science

4 tools

🌡️

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin instantly.

🏎️

Speed Converter

Convert between km/h, mph, m/s, knots, and feet per second.

🌀

Pressure Converter

Convert between PSI, bar, atm, kPa, and mmHg.

⚡

Energy Converter

Convert between joules, calories, kWh, and BTU.

💻

Digital

3 tools

💾

Data Storage Converter

Convert between bytes, KB, MB, GB, TB, and PB.

🔢

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.

📡

Frequency Converter

Convert between Hz, kHz, MHz, and GHz.

🏠

Everyday

3 tools

👩‍🍳

Cooking Converter

Convert cups, tablespoons, teaspoons, ml, and fluid ounces for recipes.

⛽

Fuel Economy Converter

Convert between MPG, km/L, and L/100km.

⏱️

Time Converter

Convert between seconds, minutes, hours, days, weeks, and years.

🔢

Math & Numbers

1 tools

📐

Angle Converter

Convert between degrees, radians, and gradians.