cm to inches calculator
Convert centimeters to inches, feet, and millimeters instantly. Enter a metric length and get the imperial measurement you need.
Centimeters are the everyday metric unit for furniture, appliances, and imported materials, but US tape measures, lumber, and cabinet specs run in inches and feet. This calculator converts a centimeter measurement into inches, feet, and millimeters so you can check a fit or match a plan without switching unit systems by hand.
How this calculator works
Multiply the centimeter value by the conversion factor to get inches, then convert inches to feet and centimeters to millimeters.
Formula: Inches = centimeters × 0.393701. Feet = centimeters × 0.0328084. Millimeters = centimeters × 10.
Worked example
100 centimeters:
- Inches: 100 × 0.393701 ≈ 39.370 in
- Feet: 100 × 0.0328084 ≈ 3.281 ft
- Millimeters: 100 × 10 = 1000.0 mm
Reference
| Centimeters | Inches | Feet |
|---|---|---|
| 30 cm | 11.811 in | 0.984 ft |
| 50 cm | 19.685 in | 1.640 ft |
| 100 cm | 39.370 in | 3.281 ft |
| 200 cm | 78.740 in | 6.562 ft |
Where this conversion is used
Measure the length in centimeters with a metric tape or take it from a spec sheet, then run it through this calculator to get the inch and foot equivalents for marking, cutting, or ordering. For finer, sub-centimeter parts and fasteners, the MM to Inches Calculator gives the same conversion at millimeter resolution.
Frequently asked questions
How many inches is 1 cm?
1 centimeter equals 0.393701 inches — a little more than 1/3 of an inch. It takes about 2.54 cm to make one inch.
Why convert centimeters to inches for a project?
Furniture dimensions, appliance cutouts, and imported building materials are frequently listed in centimeters, while US framing, cabinetry, and tape measures use inches. Converting lets you confirm a clearance or opening before you order.
Is the conversion exact?
Yes. The inch is defined as exactly 2.54 centimeters, so multiplying by 0.393701 gives a precise result — the calculator just rounds the display to a few decimal places.
What are the feet and millimeter figures for?
Feet is useful for room-scale or wall-scale measurements once the number of inches gets large, while millimeters gives finer precision for small parts. Both are derived from the same centimeter input.
How do I convert inches back to centimeters?
Multiply inches by 2.54. A 12-inch (1 ft) board is 30.48 cm long.
Estimates only. Verify quantities with your supplier before purchasing.