Feet to Centimeter Calculator
Enter feet and optional inches to convert quickly into centimeters.
How feet to centimeter calculation works
Converting feet to centimeters is straightforward once you know the base conversion factor: 1 foot = 30.48 centimeters. This value is exact because the inch is defined as 2.54 centimeters and there are exactly 12 inches in one foot.
So if you only have feet, use this formula:
centimeters = feet × 30.48
If you also have inches, first convert the inches to feet by dividing by 12, then add that to your feet value:
total feet = feet + (inches ÷ 12)
centimeters = total feet × 30.48
Why this conversion matters
Feet and inches are common in the U.S. and a few other regions, while centimeters are widely used in science, medicine, engineering, and most countries worldwide. A dependable feet to centimeter calculation helps in many real-life situations:
- Checking height requirements on international forms.
- Comparing furniture or room dimensions in metric units.
- Reading product specs from global online stores.
- Preparing technical documents that require SI units.
- Understanding medical or fitness measurements.
Step-by-step example
Example: Convert 5 feet 8 inches to centimeters
- Feet = 5
- Inches = 8
- Total feet = 5 + (8 ÷ 12) = 5.6667
- Centimeters = 5.6667 × 30.48 = 172.72 cm
Final result: 5'8" = 172.72 cm.
Quick feet to centimeter reference table
| Feet | Centimeters |
|---|---|
| 1 ft | 30.48 cm |
| 2 ft | 60.96 cm |
| 3 ft | 91.44 cm |
| 4 ft | 121.92 cm |
| 5 ft | 152.40 cm |
| 6 ft | 182.88 cm |
| 7 ft | 213.36 cm |
| 8 ft | 243.84 cm |
| 9 ft | 274.32 cm |
| 10 ft | 304.80 cm |
Common mistakes to avoid
1) Ignoring inches
If the original value includes inches and you skip them, your final centimeter value can be off by a lot. Always include both feet and inches when provided.
2) Using the wrong factor
The correct factor is 30.48, not 3.048 or 304.8 when converting feet directly to centimeters.
3) Rounding too early
Keep a few decimal places during intermediate steps, then round at the end. This gives a more accurate final answer.
Frequently asked questions
Is 1 foot exactly 30.48 cm?
Yes. It is an exact conversion based on standardized definitions.
How do I convert decimal feet to centimeters?
Multiply decimal feet directly by 30.48. Example: 5.75 ft × 30.48 = 175.26 cm.
Can inches be greater than 12?
Yes, mathematically it still works. For readability, many people convert every 12 inches into 1 foot first. The calculator handles either approach.
Final takeaway
Feet to centimeter calculation is simple, precise, and useful across daily life, health tracking, education, and professional work. Use the calculator at the top of this page whenever you need a fast and reliable conversion from imperial to metric units.