CM to Inches Converter that just works. Convert centimeters to inches in one click fast, precise, and easy.
CM to Inches Converter
CM to Inches Converter is the tool (and technique) you use to turn metric measurements in centimeters (cm) into inches (in). Whether you’re buying furniture from a global store, checking clothing size charts, planning a DIY build, or reading technical drawings, this guide gives you everything you need: the exact formula, crystal-clear steps, smart rounding, feet-and-inches formatting, quick mental tricks, common mistakes to avoid, and a handy conversion chart. Human-friendly, math-accurate, and search-optimized — all in one place.
Why “CM to Inches Converter” matters
Most of the world measures in centimeters; many US-based specs and tools speak inches. Switching correctly between the two saves time, money, and headaches:
- Shopping & returns: Size charts, furniture dimensions, and art prints often list in cm; US retailers list in inches.
- DIY & installs: Tooling, lumber, and mounting hardware are commonly imperial.
- Tech & screens: Displays are marketed in inches, but your desk/wall space might be in cm.
- Education & labs: Assignments and equipment specs may mix systems.
If you convert once in a while, you need a reliable method. If you convert daily, you need a CM to Inches Converter that’s fast, precise, and easy on mobile.
How to Convert CM to Inches (Formula)
Formula:
inches = centimeters ÷ 2.54
Example:
170 cm ÷ 2.54 = 66.9291 inches (≈ 5′7″)
Quick Steps
- Take the value in centimeters.
- Divide by 2.54.
- Round to your desired decimal places (e.g., 2).
- (Optional) Convert inches to feet + inches:
- feet = floor(inches ÷ 12)
- remaining inches = inches − (feet × 12)
Cm to inches chart
| Cm to inches | Cm to inches |
|---|---|
| 1 cm = 0.3937 in | 11 cm = 4.3307 in |
| 2 cm = 0.7874 in | 12 cm = 4.7244 in |
| 3 cm = 1.1811 in | 13 cm = 5.1181 in |
| 4 cm = 1.5748 in | 14 cm = 5.5118 in |
| 5 cm = 1.9685 in | 15 cm = 5.9055 in |
| 6 cm = 2.3622 in | 16 cm = 6.2992 in |
| 7 cm = 2.7559 in | 17 cm = 6.6929 in |
| 8 cm = 3.1496 in | 18 cm = 7.0866 in |
| 9 cm = 3.5433 in | 19 cm = 7.4803 in |
| 10 cm = 3.937 in | 20 cm = 7.874 in |
| Cm to inches | Cm to inches |
|---|---|
| 25 cm = 9.8425 in | 95 cm = 37.4016 in |
| 30 cm = 11.811 in | 100 cm = 39.3701 in |
| 35 cm = 13.7795 in | 105 cm = 41.3386 in |
| 40 cm = 15.748 in | 110 cm = 43.3071 in |
| 45 cm = 17.7165 in | 115 cm = 45.2756 in |
| 50 cm = 19.685 in | 120 cm = 47.2441 in |
| 55 cm = 21.6535 in | 125 cm = 49.2126 in |
| 60 cm = 23.622 in | 130 cm = 51.1811 in |
| 65 cm = 25.5906 in | 135 cm = 53.1496 in |
| 70 cm = 27.5591 in | 140 cm = 55.1181 in |
| 75 cm = 29.5276 in | 145 cm = 57.0866 in |
| 80 cm = 31.4961 in | 150 cm = 59.0551 in |
| 85 cm = 33.4646 in | 155 cm = 61.0236 in |
| 90 cm = 35.4331 in | 160 cm = 62.9921 in |
Centimeter Definition
In the metric (SI) system, a centimeter (cm) is a unit of length equal to one-hundredth of a meter:
1 cm = 0.01 m (and 10 mm = 1 cm, 100 cm = 1 m).
In the CGS system (centimeter gram second), the centimeter is the base unit of length (with gram for mass and second for time). It’s commonly used for everyday measurements like body height, stationery, and small objects.
Inch Definition
An inch (in or ″) is a unit of length used in the U.S. customary and British Imperial systems. It is defined exactly as 2.54 centimeters:
1 in = 2.54 cm.
There are 12 inches in a foot and 36 inches in a yard. The inch symbol is the double prime ″, while in is the written abbreviation. It’s widely used for screen sizes, woodworking, and many product dimensions in the U.S. and a few other regions.
FAQs (People Also Ask)
How many inches are in a centimeter?
1 cm = 0.3937007874 inches. Multiply cm by 0.3937 (or divide by 2.54).
Is 2.54 cm exactly 1 inch?
Yes. By international agreement, 1 inch = 2.54 centimeters exactly.
What is 170 cm in feet and inches?
170 cm ≈ 5′7″ (66.93 inches; rounding to the nearest inch).
What is 180 cm in feet and inches?
180 cm ≈ 5′11″ (70.87 inches; ≈ 5′11″).
How do I convert cm to inches without a calculator?
Divide by 2.5 to estimate quickly, then subtract ~1% for better accuracy.
Example: 170 ÷ 2.5 = 68; minus 1% ≈ 67.3 (true value ≈ 66.93).
Which is used more cm or inches?
Centimeters are standard in most countries (metric). Inches are common in the US for height, screens, and woodworking.