Centimeter Calculator
Compare a measurement in the units used by your drawing, tape measure or supplier. Choose a direction and enter the measured length; the result changes units, not the physical length. International customary measures are used; survey and mixed feet/inches measurements need a different workflow.
Scope and assumptions
SI metric units and international inch=0.0254m, foot=0.3048m, yard=0.9144m, mile=1609.344m. Scalar lengths only: no survey-foot, nautical-mile, mixed feet/inches, astronomical distance or geometric measurement claim.
Only the directions listed below are supported. Switching units retains your entered amount and validates it against the new direction.
Millimeters = Centimeters × 10.
Open selected native calculatorKeep and compare a scenario
Scenarios stay in this browser. Share and embed links contain the selected amount; review it before sending.
Worked example
For example, 1 cm is 10 mm. Choose the units your own measurement uses.
Available directions
- mm → cm
- cm → mm
- cm → dm
- cm → m
- cm → km
- cm → in
- cm → ft
- cm → yd
- cm → mi
- dm → cm
- m → cm
- km → cm
- in → cm
- ft → cm
- yd → cm
- mi → cm