4.2 ft = 0.00128016 km. To convert feet to kilometers, multiply by 0.0003048: 4.2 × 0.0003048 = 0.00128016.
How to convert feet to kilometers
km = ft × 0.0003048
- 1 ft = 0.0003048 km (and 1 km = 3,280.8399 ft).
- Multiply the amount by the factor: 4.2 × 0.0003048 = 0.00128016.
- Answer: 4.2 ft = 0.00128016 km.
Feet to Kilometers table
| Feet (ft) | Kilometers (km) |
|---|---|
| 3.7 ft | 0.00112776 km |
| 3.8 ft | 0.00115824 km |
| 3.9 ft | 0.00118872 km |
| 4 ft | 0.0012192 km |
| 4.1 ft | 0.00124968 km |
| 4.2 ft | 0.00128016 km |
| 4.3 ft | 0.00131064 km |
| 4.4 ft | 0.00134112 km |
| 4.5 ft | 0.0013716 km |
| 4.6 ft | 0.00140208 km |
| 4.7 ft | 0.00143256 km |
| ft | km |
|---|---|
| 1 ft | 0.0003048 km |
| 5 ft | 0.001524 km |
| 10 ft | 0.003048 km |
| 50 ft | 0.01524 km |
| 100 ft | 0.03048 km |
| 1,000 ft | 0.3048 km |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.