Convert length, weight, temperature, area, volume, speed, time, and digital storage units instantly. 8 categories, 100+ units, real-time conversion — free, no signup required.
8 conversion categories with 100+ units — all in one fast, free, private tool.
Length, weight, temperature, area, volume, speed, time, and digital storage. Every common unit conversion in one place.
Swap from and to units instantly with one click. Convert miles to kilometers or kilometers to miles — no reset needed.
Conversions update as you type. Change the input value, switch units, or swap direction — results appear instantly.
Each category includes a quick reference table showing common conversions at a glance. Perfect for learning conversion ratios.
Convert between metric (meters, kilograms, Celsius) and imperial (feet, pounds, Fahrenheit) units seamlessly.
All conversions happen in your browser. No data is ever sent anywhere — complete privacy guaranteed.
All conversions use standard international conversion factors as defined by the International System of Units (SI) and NIST. Length, weight, area, volume, and speed conversions are precise to 10 decimal places. Temperature conversions use exact formulas (Celsius to Fahrenheit: °F = (°C × 9/5) + 32). Digital storage uses binary prefixes (1 KB = 1024 bytes) for accurate computer storage calculations.
The metric system (SI) is the international standard, using base-10 relationships (1 kilometer = 1,000 meters). It's used by most countries worldwide. The imperial system uses traditional units (inches, feet, miles, pounds, gallons) and is primarily used in the United States and partially in the UK. This converter handles both systems and their conversions seamlessly.
Use the formula: °F = (°C × 9/5) + 32. For example, 20°C = (20 × 9/5) + 32 = 68°F. To convert Fahrenheit to Celsius: °C = (°F − 32) × 5/9. 68°F = (68 − 32) × 5/9 = 20°C. Both formulas are built into this converter — just select Temperature and enter your value.
MB (Megabyte) traditionally uses base-10 (1 MB = 1,000,000 bytes) for storage marketing. MiB (Mebibyte) uses base-2 (1 MiB = 1,048,576 bytes) for actual computer memory. This converter uses binary prefixes (1 KB = 1024 bytes) for accurate technical calculations, which is why 1 GB = 1,024 MB in our converter, not 1,000 MB.
Yes. Once the page is loaded, all conversion logic runs entirely in your browser using JavaScript. No internet connection is needed for conversions. All formulas and conversion factors are embedded in the page code. You can disconnect from the internet and continue converting units without interruption.
8 categories, 100+ units, instant results — free, private, no signup.
📐 Start ConvertingNote: All conversions use standard international conversion factors. Digital storage uses binary prefixes (1024-based). Results are calculated locally in your browser with full precision. For critical scientific or engineering calculations, verify with authoritative sources.