The US survey foot is 1200/3937 meters and is retained for legacy land records.
US survey feet to Cubits Converter — ftUS to cubit
Convert US survey foot (ftUS) to Cubit (cubit) using the exact conversion factor (1 us survey foot = 0.666668 cubit). See the formula, worked examples, and conversion table.
US survey feet to Cubits converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
A common cubit is approximated as 18 inches.
Result = input x 0.3048006096 / 0.4572.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting US survey feet to Cubits
US survey foot and Cubit both measure length. Specifically: The US survey foot is 1200/3937 meters and is retained for legacy land records, and a common cubit is approximated as 18 inches.
Formula
cubits = us survey feet × 0.666668000003
This factor comes from each unit's defined relationship to the category's base unit: 1 us survey foot equals 0.304800609601 base units, and 1 cubit equals 0.4572 base units, so dividing one by the other gives the direct us survey foot-to-cubit factor of 0.666668000003.
Simple example
1 ftUS × 0.666668 = 0.666668 cubit
1 us survey foot = 0.666668 cubits.
Real-world example
10 ftUS × 0.666668 = 6.66668 cubit
10 us survey feet = 6.66668 cubits.
Conversion table
| US survey foot (ftUS) | Cubit (cubit) |
|---|---|
| 1 ftUS | 0.666668 cubit |
| 5 ftUS | 3.33334 cubit |
| 10 ftUS | 6.66668 cubit |
| 21.0975 ftUS | 14.06502813 cubit |
| 42.195 ftUS | 28.13005626 cubit |
| 100 ftUS | 66.6668 cubit |
Reverse conversion: Cubit to US survey foot
0.666668 cubit × 1.499997 = 1 ftUS
0.666668 cubits = 1 us survey feet.
us survey feet = cubits × 1.499997
For a page dedicated to this direction, see Cubit to US survey foot.
Understanding the US survey foot (ftUS)
The US survey foot is 1200/3937 meters and is retained for legacy land records.
Understanding the Cubit (cubit)
A common cubit is approximated as 18 inches.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubits are in 1 us survey foot?
1 us survey foot equals 0.666668 cubits, using the exact defined conversion factor rather than an estimate.
How do I convert us survey foot to cubit?
Multiply the us survey foot value by 0.666668. The converter above does this instantly to whatever precision you set.
How do I convert cubit back to us survey foot?
Use the reverse factor: 1 cubit equals 1.499997 us survey feet. You can also use the swap control in the converter above to flip the direction instantly.
What is a us survey foot?
US survey foot (ftUS) is a unit of length.
What is a cubit?
Cubit (cubit) is a unit of length.
Is the us survey foot to cubit conversion exact?
Yes. Both us survey foot and cubit are defined by fixed standards rather than physical artifacts, so the factor of 0.666668 used above is exact to as many digits as you choose to display.