20 meters equals approximately 65.6168 us.
This conversion is done by multiplying the length value in meters by a fixed factor that converts meters into us. The unit “us” here indicates US survey feet, which differs slightly from the international foot commonly used.
Conversion Tool
Result in us:
Conversion Formula
The formula to convert meters (m) to US survey feet (us) is:
us = m × 3.2808333333333
This works because 1 meter equals exactly 3937/1200 US survey feet, which is approximately 3.2808333333333. The US survey foot is slightly longer than the international foot by about 2 parts per million. When you multiply the meter value by this factor, you get its length in US survey feet.
Example:
- Convert 20 meters to us:
- us = 20 × 3.2808333333333 = 65.616666666666
- Rounded to 4 decimals, 65.6167 us
Conversion Example
- Convert 5 m to us:
- Multiply 5 by 3.2808333333333
- 5 × 3.2808333333333 = 16.4042 us
- Result: 16.4042 us
- Convert 10.5 m to us:
- 10.5 × 3.2808333333333 = 34.4487 us
- Result: 34.4487 us
- Convert 0 m to us:
- 0 × 3.2808333333333 = 0 us
- Result: 0 us
- Convert -3 m to us:
- -3 × 3.2808333333333 = -9.8425 us
- Result: -9.8425 us
- Convert 12.75 m to us:
- 12.75 × 3.2808333333333 = 41.8306 us
- Result: 41.8306 us
Conversion Chart
| Value (m) | Value (us) |
|---|---|
| -5.0 | -16.4042 |
| -2.5 | -8.2021 |
| 0.0 | 0.0000 |
| 2.5 | 8.2021 |
| 5.0 | 16.4042 |
| 7.5 | 24.6062 |
| 10.0 | 32.8083 |
| 12.5 | 41.0104 |
| 15.0 | 49.2125 |
| 17.5 | 57.4146 |
| 20.0 | 65.6167 |
| 22.5 | 73.8187 |
| 25.0 | 82.0208 |
| 27.5 | 90.2229 |
| 30.0 | 98.4250 |
| 32.5 | 106.6271 |
| 35.0 | 114.8292 |
| 37.5 | 123.0312 |
| 40.0 | 131.2333 |
| 42.5 | 139.4354 |
| 45.0 | 147.6375 |
This chart shows meter values in the first column and their equivalent in US survey feet in second column. You can find close approximate conversions by looking up the meter value and read across to the us value. Negative values are included for reverse conversions.
Related Conversion Questions
- How many US survey feet is 20 meters equal to?
- What is the difference between meters and us when converting 20 m?
- Can 20 meters be accurately converted to US survey feet without rounding errors?
- Why does 20 m convert to a different value in us compared to international feet?
- Is the conversion factor for meters to us constant for all measurements near 20 m?
- How to convert 20 meters into US survey feet using a formula manually?
- What is the step-by-step process to convert 20 m to us on a calculator?
Conversion Definitions
m (meter): The meter is a base unit of length in the International System of Units (SI). It is defined by the distance light travels in vacuum during 1/299,792,458 of a second. Meters are used worldwide for measuring length, height, and distance in scientific, engineering, and everyday contexts.
us (US survey foot): The US survey foot is a unit of length used primarily in surveying and mapping in the United States. It equals exactly 1200/3937 meters, slightly longer than the international foot by approximately 0.00006%. This unit helps maintain consistency in land measurements and legal boundaries.
Conversion FAQs
Why is the US survey foot slightly different from the international foot?
The US survey foot was defined based on an older meter-to-foot ratio of exactly 1200/3937 meters. The international foot, adopted later, equals exactly 0.3048 meters. The tiny difference exists to preserve historical land survey measurements in the US, preventing changes in legal property boundaries.
Can I use the same conversion factor for all lengths when converting meters to us?
Yes, the conversion factor 3.2808333333333 is fixed and linear, so it applies to any length value in meters. However, for extremely precise geodetic calculations, other factors like Earth’s curvature might come in, but for normal usage, this factor is consistent.
How accurate is the conversion from meters to US survey feet?
This conversion is very accurate for practical purposes. The US survey foot is defined exactly relative to the meter, so the calculation involves no approximation errors except those from decimal rounding. For most engineering and surveying work, this precision is sufficient.
Is there any reason to prefer US survey feet over international feet in measurements?
US survey feet remain in use mainly for legacy reasons in US land surveying and mapping. Using US survey feet prevents legal complications by maintaining consistency with past survey records, even though the international foot is more widely adopted globally.
How do I convert back from US survey feet to meters?
To convert US survey feet back to meters, divide the value in us by 3.2808333333333. This inverse calculation returns the original length in meters, preserving the exact relation between the two units without loss of accuracy.