Feet to Inches Calculator
Convert feet to inches and inches to feet instantly. 1 foot = exactly 12 inches (international foot).
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
1 Feet (ft) = 12.000000 Inches (in)
Formula: Inches = Feet × 12
This tool provides general unit conversions for everyday and educational use. For regulated, legal, or scientific applications, verify conversion factors against the applicable official standard.
About the Feet to Inches Calculator
The feet to inches calculator uses the exact relationship 1 foot = 12 inches. It handles decimal feet, so a measurement such as 5.75 ft converts straight to inches, and it works in reverse for converting a measurement in inches into feet. A reference table shows common values.
How to use it
- 1Enter the amount in feet.
- 2The equivalent in inches appears instantly.
- 3Press the ⇌ button to convert from inches back to feet.
- 4Choose how many decimal places to show if you need more or less precision.
Worked example
5.75 ft × 12 = 69 inches. In the other direction, 30 inches ÷ 12 = 2.5 ft.
How it works
Formula
Inches = Feet × 12
Feet = Inches ÷ 12
Conversion table
| Feet | Inches |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 5.5 | 66 |
| 6 | 72 |
| 6.5 | 78 |
Common use cases
- Converting decimal feet from plans into inches
- Checking a height in inches
- Cutting materials to length
Frequently asked questions
A:Almost, but not exactly. The international foot = 0.3048 m exactly; the US survey foot ≈ 0.30480061 m. For everyday use the difference is negligible.
A:5 ft 10 in = 70 inches = 5.8333 feet.
Reviewed for accuracy · Last updated October 7, 2026
Conversion factors are based on internationally defined SI units and standard metric/imperial equivalence tables.
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources
Related guides
Feet and Inches Calculator: Calculate Measurements Easily
Convert, add, and subtract feet and inches — including fractions — using 1 foot = 12 inches. See total inches, decimal feet, worked examples, and a free calculator.
Common Unit Conversion Formulas Made Simple
Length, weight, temperature, and volume conversions explained with exact factors, worked examples, and common mistakes to avoid.
Length Converter: Convert Units Accurately
Convert any length or distance unit accurately — from kilometres and metres to miles, feet, and inches — with practical conversion tables, formulas, and real-world examples.