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Metric Result
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Centimeters
1 inch = 2.54 cm 1 foot = 30.48 cm
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About

Standard calculators fail when dealing with non-decimal systems like Imperial length measurements. A value like "5 feet 10 inches" cannot simply be entered as "5.10". In fact, 5"10" is approximately 5.83 decimal feet. This specialized tool solves the calculation friction by providing distinct fields for Feet and Inches, processing them into a single metric output: Centimeters (cm).

This utility is essential for international travel (visas often require height in cm), apparel manufacturing (tailoring patterns often mix standards), and health screenings. It eliminates the two-step process of converting inches to decimal feet before converting to metric, reducing the risk of the common "base-10 vs base-12" error.

feet inches cm height apparel tailoring

Formulas

The calculation is a summation of two separate conversions:

Lengthcm = (ft × 30.48) + (in × 2.54)

Note: If the inches input contains decimals (e.g., 5" 6.5"), the decimal part is treated as a fraction of an inch and multiplied by 2.54 accordingly.

Reference Data

Feet (ft)Inches (in)Equivalent (cm)Usage Example
410147.32Fabric roll width
50152.40Petite clothing sizing
54162.56Avg female height (approx)
58172.72Suit jacket length
510177.80Standard trouser length
60182.88Model requirement
62187.96Door clearance check
65195.58NBA Guard height
70213.36Center (Basketball)

Frequently Asked Questions

Yes. While standard notation would roll 12 inches over to 1 foot, this tool calculates it correctly. 5 feet 12 inches will yield the same result as 6 feet 0 inches (182.88 cm).
You should convert fractions to decimals. For 1/2 inch, enter 0.5. For 1/4 inch, enter 0.25. Example: For 5" 6 1/2", enter 5 in feet and 6.5 in inches.
The conversion factors (30.48 and 2.54) are exact definitions. The tool provides a result rounded to two decimal places, which offers sub-millimeter precision, sufficient for almost all construction and tailoring needs.
Standard calculators are base-10. Time and Length (Imperial) are not. Entering 5.10 into a calculator treats 10 inches as 10/100 of a foot, whereas it is actually 10/12. This results in a significant error (155 cm vs 178 cm).