Unit Converter is a 100% free, browser-based utility that enables you to length, weight, temperature, area, volume, speed & more. Unlike traditional cloud converters, all processing executes locally on your device with zero server uploads, delivering immediate results and ironclad data privacy.
About the Unit Converter
Convert between more than 90 metric, imperial and US customary units in ten categories. Conversions use exact internationally defined factors, for example 1 inch = 2.54 cm, 1 pound = 0.45359237 kg and 1 mile = 1.609344 km. Temperature uses formulas rather than a single factor, such as °F = °C × 9/5 + 32.
Digital storage includes both decimal units (1 MB = 1,000,000 bytes) and binary units (1 MiB = 1,048,576 bytes), which explains why a "500 GB" drive shows as about 465 GiB in many operating systems.
How to use the Unit Converter
- Choose a category such as length or temperature.
- Pick the units to convert from and to.
- Type a value. The result, formula and a table of common values update instantly.
Features
- 10 categories, 90+ units
- Exact conversion factors
- Swap units in one click
- Formula & quick reference table
Why Choose In-Browser Unit Converter vs Cloud Converters?
| Feature | Toolora (In-Browser) | Traditional Cloud Tools |
|---|---|---|
| Data Privacy | 100% Private (Files stay on device) | Uploaded to remote servers |
| File Size Limits | Unlimited (Limited only by your RAM) | Restricted (e.g. 10MB–50MB caps) |
| Processing Speed | Instant (Zero upload/download delay) | Slow upload & queue waiting |
| Ads & Popups | Clean, distraction-free | Heavy banner & interstitial ads |
Frequently asked questions
How many centimetres are in an inch?
Exactly 2.54 cm. The inch has been defined as 25.4 mm since 1959.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example 100 °C × 9/5 + 32 = 212 °F, and 0 °C = 32 °F.
What is the difference between MB and MiB?
MB (megabyte) is decimal: 1,000,000 bytes. MiB (mebibyte) is binary: 1,048,576 bytes. Storage makers usually use decimal units while some operating systems report binary units.