We use standard SI definitions and full double-precision arithmetic. Length, weight, and data-size conversions are exact to the precision JavaScript can express; temperature uses the exact formulas and rounds only for display.
Yes. All conversion math runs in your browser. Once the page is loaded, it works without an internet connection — nothing is sent to our servers.
MB (megabyte) uses base-10 (1 MB = 1,000,000 bytes), while MiB (mebibyte) uses base-2 (1 MiB = 1,048,576 bytes). Storage vendors use MB; operating systems usually report MiB. Both are supported.
Open the Temperature tab and enter your Celsius value — Fahrenheit appears instantly. The formula is °F = (°C × 9/5) + 32. Kelvin and Rankine are also supported.
Yes — the Time tab converts seconds, minutes, hours, days, weeks, months and years. For Unix timestamps and ISO 8601 dates, use our dedicated Timestamp Converter.
Working with units? You may also need these conversion tools: