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Conversion Calculator

Convert length, area, volume, mass, speed, energy, data and temperature units, with US, imperial and binary distinctions made explicit.

Your inputs

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EXAMPLE RESULTCalculated locally
Converted value
100 cm
Clear inputs. Transparent methods.
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How it works

A useful distinction

Area factors must be squared

One meter equals 100 centimeters, but one square meter equals 10,000 square centimeters. Volume scales again to 1,000,000 cubic centimeters. Select area or volume explicitly instead of applying the length conversion to a measured surface or container.

Converting compatible measurements

Choose the measurement category before selecting source and destination units. Length, area, volume, and power describe different quantities even when their unit names look related. Temperature conversion also uses a different relationship from a simple scale factor in many other categories. Keep the original measurement precision in mind; a conversion can add displayed digits without adding new measurement accuracy.

Length: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Area: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Volume: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Mass: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Time: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Speed: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Pressure: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Energy: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Power: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Data: formula and assumptions

Converted value = input × source-to-base factor / target-to-base factor.

Choose explicit units. US and imperial volume units differ; decimal and binary data units differ.

Temperature: formula and assumptions

°F = °C×9/5+32; K = °C+273.15.

Temperatures below absolute zero are rejected.

Worked example

Using the Length example:

Inputs
Value
1
From
m
To
cm
Method

Converted value = input × source-to-base factor / target-to-base factor.

Result

Example result

Converted value: 100 cm

These are illustrative inputs. Change the values to explore a different scenario.

Formula references

References explain the underlying methods; they do not imply endorsement or individual professional review of Finflo.

Common questions

Are US and imperial gallons interchangeable?

No. They are different volume units. Select the intended gallon explicitly before converting fuel, liquid or other volume quantities.

Why do decimal and binary data units give different results?

Decimal units use powers of 1,000, while binary units use powers of 1,024. The selected unit determines the conversion factor.

Prepared by Finflo. See our methodology and editorial policy.