BQ Calculator

Unit Converter

Convert eight common measurement categories instantly with no API calls, including both decimal and binary digital-storage units.

BQ Calculator · https://calculator.bqtools.com/unit-converter/

⚡ Live↗ Shareable◌ Local history⌁ Offline-ready

Inputs

Live calculation

Share links contain only the values needed to recreate this calculation.

Converted value

Instant conversion
Result0

PrecisionConversions use full floating-point precision internally and round only for display.
Local-firstNo conversion API or third-party unit library is required.

Convert common measurement units in one place

The converter groups units by physical quantity and converts through a consistent base unit. Length uses meters, mass uses kilograms, area uses square meters, volume uses liters, speed uses meters per second, time uses seconds, and digital storage uses bytes.

Formula

result = value × fromFactor ÷ toFactor

That factor formula applies to proportional unit groups. Temperature is different because Fahrenheit and Kelvin use offsets as well as scale changes, so Celsius is used as an intermediate reference.

Decimal and binary data units

Digital storage intentionally includes both decimal units such as KB, MB and GB and binary units such as KiB, MiB and GiB. Keeping them separate avoids the common mistake of treating 1 MB and 1 MiB as the same quantity.

Worked examples

One mile converts to exactly 1.609344 kilometers. 32°F converts to 0°C. One MiB converts to 1,024 KiB. Use the Swap button to reverse the selected units without retyping the value.

Assumptions and limitations

The converter focuses on widely used modern units. It does not currently include every historical, regional or specialist engineering unit, and it does not perform dimensional analysis between incompatible quantities.

Frequently asked questions

Which unit categories are supported?

Length, mass, area, volume, speed, temperature, time and digital storage are included in the initial converter set.

How are temperature conversions handled?

Temperature uses the exact Celsius/Fahrenheit/Kelvin offset formulas rather than a simple multiplication factor.

What is the difference between MB and MiB?

MB uses decimal SI scaling where 1 MB is 1,000,000 bytes. MiB uses binary scaling where 1 MiB is 1,048,576 bytes.

Are unit conversions performed on a server?

No. The conversion tables and formulas are bundled with the site and calculations run locally in the browser.

Why can converted values have many decimal places?

Some unit ratios are not whole numbers. The display preserves useful precision while avoiding unnecessary trailing digits.