Feet to Inches, Centimeters & Kilometers – Compact Guide
Feet to in, cm & km span small to large scales: inches for fine detail, centimeters for metric context, kilometers for long linear totals. All use fixed multipliers.
Formulas
- in = ft × 12
- cm = ft × 30.48
- km = ft × 0.0003048
- ft = in ÷ 12 = cm ÷ 30.48 = km ÷ 0.0003048
Quick Values
1 ft = 12 in = 30.48 cm = 0.0003048 km · 6 ft = 72 in = 182.88 cm = 0.0018288 km.
Example (10 ft)
- Inches = 10 × 12 = 120 in
- Centimeters = 10 × 30.48 = 304.8 cm
- Kilometers = 10 × 0.0003048 = 0.003048 km
- Result: 10 ft = 120 in = 304.8 cm = 0.003048 km
Uses
- Survey summaries (ft totals shown in km)
- Engineering conversions bridging imperial specs to metric mapping
- Aviation ground distance planning (legacy ft data → metric)
Accuracy & Tips
- Keep at least 6 decimals for km on short spans
- Memory hook: km ≈ ft × 3.048e-4
- Avoid chaining ft→in→cm→km; compute directly for less rounding
More Examples
| Feet | Inches | Centimeters | Kilometers |
|---|
| 2 | 24 | 60.96 | 0.0006096 |
| 5 | 60 | 152.4 | 0.001524 |
| 6 | 72 | 182.88 | 0.0018288 |
FAQ
- Why such a small km value? A foot is only 0.0003048 km.
- Better to convert ft to meters first? Only if you need intermediate m; otherwise direct is fine.
- How many ft in 1 km? 1 ÷ 0.0003048 = 3280.84 ft (exact).