Converting Metric to Imperial: Centimeters to Feet & Inches

The United States is one of the only countries in the world that still uses the Imperial system (feet, inches, pounds). Because the rest of the world uses the Metric system (centimeters, meters, kilograms), Americans frequently run into conversion headaches.

Whether you are ordering custom furniture from Europe, reading international clothing size charts, or following a foreign woodworking tutorial, you will eventually need to convert centimeters (cm) into feet and inches.

While you can always use our free CM to Feet Converter, it helps to understand the math behind it so you can make quick mental estimates on the fly.

The Magic Number: 2.54

The golden rule of metric-to-imperial length conversions is 2.54.

There are exactly 2.54 centimeters in a single inch.

If you are looking at a measurement in centimeters and want to know how many inches it is, simply divide the number by 2.54.

Example: You want to buy a desk online, and the website says it is 120 cm wide. 120 ÷ 2.54 = 47.24 inches.

Now you know the desk is roughly 47 inches wide!

Converting to Feet and Inches

Knowing the measurement in inches is great for small items, but for height or large furniture, Americans visualize measurements in Feet and Inches (e.g., 5'10").

There are 12 inches in a foot. To convert centimeters into a clean "feet and inches" format, the math gets a little trickier.

1. Find total inches: First, divide the centimeters by 2.54. (e.g., 180 cm ÷ 2.54 = 70.86 inches).
2. Find the feet: Divide total inches by 12 to find the feet. (70.86 ÷ 12 = 5.90 feet). The whole number is your feet. So, we have 5 feet.
3. Find the leftover inches: Take the remainder decimal (0.90) and multiply it by 12. (0.90 × 12 = 10.8 inches).
4. The Final Result: 180 cm is exactly 5 feet and 10.8 inches (or roughly 5'11").

Common Quick Conversions to Memorize

If you don't want to do math in your head, memorizing these common benchmarks will help you estimate international sizes instantly:

• 15 cm is about 6 inches (half a foot).
• 30 cm is about 12 inches (1 foot). This is why standard American rulers are 30 cm long!
• 90 cm is about 3 feet (1 yard).
• 160 cm is about 5'3" (Average US female height).
• 175 cm is about 5'9" (Average US male height).

When to Use a Calculator

Mental math is great for estimating, but if you are doing precision woodworking, sewing, or home renovations, being off by a fraction of an inch can ruin the entire project.

For exact, pinpoint accuracy, you should always use a digital calculator rather than rounding decimals in your head.

Our free CM to Feet Calculator handles the complex decimal math for you. Just type in the centimeters, and it will instantly give you the exact conversion in feet, inches, and fractional inches!