Conversion method
The standard formulas behind every result
Each conversion uses a fixed, published factor. Here is the logic behind the numbers you see.
Three sequential steps
From input to checked result
01
Enter your value
Type the measurement you have and choose its unit. The tool reads only the number and the unit pair.
02
Apply the factor
The value is multiplied by the standard conversion factor for that unit pair, shown beside the result.
03
Review the result
Compare the converted figure with the scale diagram to confirm its size relative to the original unit.
Reference standards
Base units and rounding rules
Metric conversions use exact international definitions, so results match published values. Customary conversions use the same fixed relationships that appear in standard reference tables.
Results are rounded to a sensible number of decimal places for the unit shown. Rounding never changes the underlying factor, so you can always recalculate the exact figure from the formula.