This converter turns feet into decimeters instantly, using the exact factor 1 foot = 3.048 decimeters. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Twelve inches, or exactly 0.3048 metres — still standard for human height and aviation altitude in the US. One tenth of a metre; rare in daily use but common in fluid and timber specifications.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
feet- The amount you are converting, measured in feet
3.048- The exact number of decimeters in one foot
decimeters- The converted result
How it works, step by step
- Enter the number of feet you want to convert.
- The value is multiplied by 3.048, the exact conversion factor.
- The result is displayed in decimeters, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 feet
Multiply 5 by 3.048. That gives 15.24 decimeters. A quick sanity check: one foot is larger than one decimeter, so the number should get bigger — and it does.
Converting 72 feet
72 × 3.048 = 219.456 decimeters. Working backwards, 219.456 ÷ 3.048 returns 72 feet, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many decimeters are in one foot?
Exactly 3.048. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert feet to decimeters?
Decimeters = feet × 3.048. To reverse it, divide instead: feet = decimeters ÷ 3.048, which is the same as multiplying by 0.3280839895.
Is the foot bigger than the decimeter?
Yes. One foot equals 3.048 decimeters, so it is the larger unit.
Why does my answer differ slightly from other feet to decimeters converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a foot?
Twelve inches, or exactly 0.3048 metres — still standard for human height and aviation altitude in the US.
What is a decimeter?
One tenth of a metre; rare in daily use but common in fluid and timber specifications.
Feet to decimeters reference table
| Feet | Decimeters |
|---|---|
| 0.5 ft | 1.524 dm |
| 1 ft | 3.048 dm |
| 2 ft | 6.096 dm |
| 3 ft | 9.144 dm |
| 5 ft | 15.24 dm |
| 10 ft | 30.48 dm |
| 15 ft | 45.72 dm |
| 20 ft | 60.96 dm |
| 25 ft | 76.2 dm |
| 50 ft | 152.4 dm |
| 75 ft | 228.6 dm |
| 100 ft | 304.8 dm |
| 250 ft | 762 dm |
| 500 ft | 1,524 dm |
| 1000 ft | 3,048 dm |
Exact factor: 1 foot = 3.048 decimeters. Values rounded for display.