Feet to Inches
This free feet to inches converter multiplies any foot value by exactly 12 and prints the inch result on every keystroke.
How to use
- Type a value in feet into the Value box.
- The equivalent length in inches appears instantly as you type.
- Swap the From and To selects to convert inches back to feet.
- Copy the full equation shown under the result into your notes or document.
Frequently asked questions
How many inches is 1 foot exactly?
Exactly 12. The foot is defined as 12 inches in the imperial system, so feet × 12 is an exact multiplication with no rounding involved.
What is the formula for feet to inches?
inches = feet × 12. For example, 6 ft × 12 = 72 in, and 5.5 ft × 12 = 66 in. The reverse direction divides by 12 instead.
How do I convert feet and inches to total inches?
Multiply the feet by 12 and add the existing inches. Example: 5 ft 7 in = 5 × 12 + 7 = 67 in. This is the reading most online forms expect when they ask for height in inches.
How tall is 5.5 feet in inches?
5.5 × 12 = 66 in, the same as 5 ft 6 in. Decimal feet are just whole feet plus a fraction of 12 inches, so the multiplication stays exact.
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About this tool
This free feet to inches converter multiplies any foot value by exactly 12 and prints the inch result on every keystroke. Inside the imperial system the ratio is a definition, not an approximation — one foot is exactly 12 inches — so the only math involved is a clean multiplication that never loses precision, even for long decimal inputs. The full equation shows under each result so you can quote it in a carpentry cut list, a TV buying guide or a school worksheet without re-deriving it. Typical jobs include turning a 6 ft ceiling into 72 in for a form that only accepts inches, converting human height for medical charts (5 ft 4 in is 64 in, so 5.333333333 ft is 64 in), and checking furniture clearances against inch-marked tape measures. Decimal feet behave the same: 5.5 ft × 12 = 66 in. If your starting point is feet and inches combined, convert the inches part by simply leaving it in place and adding it after multiplying the feet by 12. Everything runs locally in your browser: nothing you type is uploaded, stored or logged. To convert the other direction, swap the From and To selects and the page becomes inches to feet in one click.