Unit Converter
Convert measurements between supported units online. Select the measurement type and units, then review the converted value.
Unit Converter
Choose a measurement category
Select the category, enter the original value, and choose the source and destination units. Read the displayed result with its unit. Confirm that you are converting the type of quantity you actually measured.
Use a known value as a check
For a length conversion, 1 meter equals 100 centimeters. Use that simple case to check direction before entering a longer measurement. Then reverse the units and compare the result with the original. Small differences can appear from rounding.
Keep quantities separate
Length, area, and volume use different conversion factors. Converting a number of meters is not the same as converting square meters or cubic meters. Likewise, weight and power belong to different categories even if a project uses both.
Preserve useful precision
Keep enough digits for the next step in your calculation and round the final result according to the purpose of the measurement. A displayed decimal value does not establish that the original measurement was that precise. Check a destination’s required unit and precision before submitting a specification.