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Feet to Inches (ft to in)
Convert feet to inches: 1 ft = 12 in. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 ft = 12 in
inches = feet × 12 — reverse: feet = inches × 0.08333333333
The factor is derived from the SI definitions of both units (base unit: m) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 ft = 60 in
- 12.5 ft = 150 in
- 100 ft = 1200 in
Feet to inches conversion table
| Feet (ft) | Inches (in) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 6 | 72 |
| 7 | 84 |
| 8 | 96 |
| 9 | 108 |
| 10 | 120 |
| 15 | 180 |
| 20 | 240 |
| 25 | 300 |
| 30 | 360 |
| 40 | 480 |
| 50 | 600 |
| 75 | 900 |
| 100 | 1200 |
| 200 | 2400 |
| 250 | 3000 |
| 500 | 6000 |
| 1000 | 12000 |
FAQ
How many inches are in one foot?
1 ft = 12 in. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert feet to inches?
Multiply the value in feet by 12: inches = feet × 12. For example, 5 ft = 60 in.
How do I convert inches back to feet?
Multiply by the inverse factor 0.08333333333 (feet = inches × 0.08333333333), or use the inches-to-feet page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=ft&to_unit=in - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"ft","to_unit":"in"} - Markdown: https://tttkmbb.com/conversion/feet-to-inches.md · JSON: https://tttkmbb.com/conversion/feet-to-inches.json (add
?value=for a result) · Units: /api/v1/units?quantity=length - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.