Length
Feet to metres
One multiplication by an exact constant. Use it whenever the measurement is already in feet, or has been converted to decimal feet first.
The Formula
m = ft x 0.3048
One multiplication by an exact constant. Use it whenever the measurement is already in feet, or has been converted to decimal feet first.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| ft | Length in feet | feet | May include a decimal part, but only if the inches were genuinely divided by twelve. |
| 0.3048 | Metres in one foot | metres per foot | Exact by definition, being one third of the 0.9144 m yard. |
| m | Length in metres | metres | Scales linearly, so twice the feet gives twice the metres. |
What Each Symbol Means
ftfeet
Length in feet
May include a decimal part, but only if the inches were genuinely divided by twelve.
0.3048metres per foot
Metres in one foot
Exact by definition, being one third of the 0.9144 m yard.
mmetres
Length in metres
Scales linearly, so twice the feet gives twice the metres.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to convert feet to meters page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Convert Feet To Meters, filed under Unit Conversion. Every number the guide produces comes from substituting into this one line.