Convert Feet to Inches
Feet to inches is the most basic imperial-to-imperial length conversion there is — no metric involved. One foot is exactly 12 inches, so you just multiply.
Feet to Inches conversion table
| Feet (ft) | Inches (in) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 50 | 600 |
| 100 | 1,200 |
| 500 | 6,000 |
| 1,000 | 12,000 |
The formula
To convert feet to inches, multiply the length in feet by 12:
inches = feet × 12
A worked example
Convert a 10-foot ladder's length to inches:
10 × 12 = 120 in
At a bigger scale, 100 feet is 1,200 inches.
Why it's exact
Twelve inches to a foot has been the standard since long before any modern unit definitions — it's a fixed ratio, so there's never any rounding to worry about.
When you'll use it
Converting heights, carpentry and woodworking measurements, or any spec that's given in feet but needs to be entered somewhere as inches, like a tape measure reading or a size chart.
Frequently asked questions
How many inches are in a foot?
Exactly 12 inches. This is a fixed definition, not a rounded figure.
How many inches is 5 feet?
5 ft × 12 = 60 in.
How do I convert a height like 5 feet 10 inches to just inches?
Multiply the feet by 12 and add the leftover inches: 5 × 12 = 60, plus 10 = 70 inches total.