Convert feet to inches
Convert feet to inches instantly. 1 ft = 12 in. Formula, worked examples and a quick reference table.
Last updated
One foot equals 12 inches. To convert any number of feet to inches, multiply by 12.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Length conversions come up wherever a measurement crosses a border: a height given in feet and inches on a form that wants centimetres, a running distance recorded in kilometres and compared against miles, a component specified in millimetres and ordered from a supplier working in inches. The conversions themselves are exact — the inch, foot, yard and mile have all been defined in metric terms since 1959 — so any discrepancy comes from rounding, not from the units disagreeing.
feet to inches formula
To go the other way, use foot = inch ÷ 12.
About these units
A foot is exactly 12 inches, or 0.3048 metres. It survives in aviation altitudes worldwide, even in otherwise fully metric countries.
The inch has been defined as exactly 25.4 millimetres since the 1959 international yard and pound agreement, which finally reconciled slightly different British and American definitions.
Foot is also written feet. Inch is also written inches and ".
Sources
feet to inches conversion table
| Foot | Inch |
|---|---|
| 1 ft | 12 in |
| 2 ft | 24 in |
| 3 ft | 36 in |
| 5 ft | 60 in |
| 10 ft | 120 in |
| 20 ft | 240 in |
| 25 ft | 300 in |
| 50 ft | 600 in |
| 100 ft | 1,200 in |
| 250 ft | 3,000 in |
| 500 ft | 6,000 in |
| 1,000 ft | 12,000 in |
Frequently asked questions
How many inches are in a foot? +
There are 12 inches in one foot.
What is 10 ft in in? +
10 ft equals 120 in. Multiply 10 by 12.
How do I convert inch back to foot? +
Use foot = inch ÷ 12. The converter above handles both directions, or see our dedicated inches to feet page.
How accurate is this foot to inch conversion? +
The factor used is 12, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate ft to in in my head? +
Multiply by 12. That matches the true factor of 12 exactly, so no adjustment is needed for a mental estimate.