Unit Converter
Feet to Inches Converter
Convert feet to inches instantly. 1 ft = 12 in. Free, accurate length conversion with full tables and formulas.
Inches
12 in
1 ft = 12 in
Feet to Inches formula
in = ft × 12Feet and inches are both imperial units of length, with inches as the smaller subdivision. One foot equals exactly 12 inches by definition, a relationship established in the imperial measurement system used primarily in the US, UK, and Canada for everyday measurements.
Feet to Inches conversion table
| Feet (ft) | Inches (in) |
|---|---|
| 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 | 1200 in |
| 500 ft | 6000 in |
| 1000 ft | 12000 in |
When you need to convert feet to inches
- Measuring height for medical records or passport applications
- Converting room dimensions when ordering furniture or planning interior design
- Calculating material lengths in construction, woodworking, or crafts
- Determining screen sizes or device dimensions from specifications
- Converting measurements for clothing tailoring or garment fitting
Frequently asked questions
Why do feet convert to inches using 12?
The imperial system defines 1 foot as exactly 12 inches by standard definition. This 12-to-1 ratio is the foundation of imperial length measurement and has been standardized for centuries in countries using imperial units.
How do I convert feet to inches mentally?
Multiply the number of feet by 12. For example, 5 feet becomes 60 inches. For mixed measurements like 5 feet 3 inches, convert only the feet portion and add any remaining inches.
Is the feet-to-inches conversion exact?
Yes, the conversion is exact by definition: 1 foot = 12 inches precisely. There is no rounding or approximation involved in this imperial unit relationship.