Inches to Feet Converter
Both inches and feet are imperial units, with a clean ratio of 12 inches per foot. The conversion is everyday math in US construction, real estate, and home improvement — used whenever a measurement crosses the boundary between fine detail (inches) and overall size (feet).
Looking for the reverse? Feet to Inches converter →
How to Convert Inches to Feet
To convert inches to feet, multiply the number of inches by 0.0833333.
Worked Examples
- 1 inch = 1 × 0.08333 = 0.083333 ft
- 5 inches = 5 × 0.08333 = 0.416667 ft
- 12 inches = 12 × 0.08333 = 1 ft
- 36 inches = 36 × 0.08333 = 3 ft
Why Convert Inches to Feet?
- Adding up smaller measurements (door widths, trim, baseboards) in inches and reporting the total in feet for a contractor
- Reading lumber and pipe lengths from a building supply receipt that mixes inches and feet
- Estimating ceiling heights, room dimensions, or property frontage from inch-level survey notes
- Translating product dimensions from a manufacturer's spec sheet into the foot-level framing terms used on-site
- Converting human height (e.g., 70 inches) to the more familiar feet-and-inches format
Inches to Feet Conversion Table
| Inches (in) | Feet (ft) |
|---|---|
| 0.01 in | 0.000833 ft |
| 0.1 in | 0.008333 ft |
| 0.25 in | 0.020833 ft |
| 0.5 in | 0.041667 ft |
| 0.75 in | 0.0625 ft |
| 1 in | 0.083333 ft |
| 1.5 in | 0.125 ft |
| 2 in | 0.166667 ft |
| 2.5 in | 0.208333 ft |
| 3 in | 0.25 ft |
| 4 in | 0.333333 ft |
| 5 in | 0.416667 ft |
| 6 in | 0.5 ft |
| 7 in | 0.583333 ft |
| 8 in | 0.666667 ft |
| 9 in | 0.75 ft |
| 10 in | 0.833333 ft |
| 11 in | 0.916667 ft |
| 12 in | 1 ft |
| 13 in | 1.083333 ft |
| 14 in | 1.166667 ft |
| 15 in | 1.25 ft |
| 16 in | 1.333333 ft |
| 17 in | 1.416667 ft |
| 18 in | 1.5 ft |
| 19 in | 1.583333 ft |
| 20 in | 1.666667 ft |
| 24 in | 2 ft |
| 30 in | 2.5 ft |
| 36 in | 3 ft |
| 48 in | 4 ft |
| 60 in | 5 ft |
| 72 in | 6 ft |
| 84 in | 7 ft |
| 96 in | 8 ft |
| 100 in | 8.333333 ft |
| 120 in | 10 ft |
| 144 in | 12 ft |
| 200 in | 16.666667 ft |
| 300 in | 25 ft |
| 500 in | 41.666667 ft |
| 1000 in | 83.333333 ft |
Quick Reference: Inches to Feet
The most-searched conversion values for this pair, summarised for quick lookup:
| Inch | Feet |
|---|---|
| 1 in | 0.083333 ft |
| 2 in | 0.166667 ft |
| 5 in | 0.416667 ft |
| 10 in | 0.833333 ft |
| 25 in | 2.083333 ft |
| 50 in | 4.166667 ft |
| 100 in | 8.333333 ft |
What Is an Inch?
An inch is a unit of length equal to exactly 25.4 millimeters, defined in 1959 as part of the international yard and pound agreement.
The inch traces back to early English measurement, originally tied to the width of a human thumb or three barleycorns laid end-to-end. After centuries of regional variation, the international inch was standardized in 1959 by an agreement among English-speaking countries to exactly 25.4 millimeters, replacing the slightly different US survey inch for most purposes.
In everyday use: Inches are the standard unit for screen sizes (a 15-inch laptop), TV diagonals, paper formats in the US, plumbing pipe diameters, and clothing dimensions like waistlines and shoe insoles. They remain dominant in US construction, woodworking, and any industry that grew around imperial drawings.
The inch symbol is in.
What Is a Foot?
A foot is a unit of length equal to exactly 0.3048 meters (12 inches), defined in 1959 by international agreement.
The foot is one of the oldest units still in everyday use, with roots in ancient Greek, Roman, and medieval European measurement systems — each using a foot of slightly different length. The modern international foot was fixed at 0.3048 meters in 1959, while the US Survey foot persisted for geodetic work until being phased out at the end of 2022.
In everyday use: Feet are widely used to express human height, room dimensions, and ceiling heights in the United States and United Kingdom. The unit is standard in aviation for altitude (flight level 350 = 35,000 feet) and remains common in real estate listings, construction drawings, and outdoor distance estimates.
The foot symbol is ft.
Precision and Accuracy
There are exactly 12 inches in 1 foot. Dividing inches by 12 is an exact conversion within the imperial system — the only rounding comes from how you display fractions vs. decimal feet.
For most everyday purposes — recipes, room sizing, shopping — four decimal places of precision are more than enough. Engineering and scientific work may require additional digits or scientific notation for very small or very large results.
Common Inches to Feet Conversions
References
- National Institute of Standards and Technology (NIST) — SI Units: Length
- International Bureau of Weights and Measures (BIPM) — The International System of Units (SI)