Unit Converter
Convert length, weight, temperature, area, volume, speed, data size and time — to one unit or all of them at once.
How to Use Unit Converter in 3 Steps
Pick a quantity
Length, weight, temperature, area, volume, speed, data size or time. The unit lists change to match.
Type a value and its unit
Enter any number (decimals and 1.5e3-style exponents work) and choose the unit it is in under From.
Read one or all
Leave To on “All units” to see every conversion with its own copy button, or pick one unit for a big single answer and its formula.
Unit Converter — Frequently Asked Questions
How precise are the conversions?
Exact definitions are used where they exist (1 inch = 2.54 cm, 1 lb = 0.45359237 kg, 1 US gallon = 3.785411784 L). Results show up to 10 significant digits by default; choose fixed decimals in Settings.
How is temperature handled?
Temperature uses formulas, not a single factor, so offsets are correct: °F = °C × 9/5 + 32, K = °C + 273.15, °R = K × 9/5. Values below absolute zero are flagged.
Why are there both MB and MiB?
Storage makers use decimal units (1 MB = 1,000,000 bytes); operating systems and RAM often use binary units (1 MiB = 1,048,576 bytes). Both are listed so you can compare a “500 GB” drive with what your computer reports.
How long is a month or a year here?
An average Gregorian month (30.436875 days) and year (365.2425 days). For calendar dates, use a date calculator instead.
Does it convert currencies?
No — exchange rates change constantly and need a live server, which Toolity tools do not use. Everything here uses fixed, published factors.
Is my data uploaded anywhere?
No. Parsing and converting happen in JavaScript inside your browser tab. Your text and files are never sent to Toolity or anyone else.