How do you convert feet to kilometers?

To convert feet (ft) to kilometers (km), multiply the length in feet by 0.0003048 (kilometers = feet × 0.0003048).

What is 10000 feet in kilometers?

10000 feet (10000 ft) is equal to 3.048 kilometers (3.048 km).

Which is larger, 1 foot (ft) or 1 kilometer (km)?

One kilometer (km) is larger than one foot (ft). Specifically, 1 km equals 3,280.8399 ft, while 1 ft is 0.0003048 km.

How do I convert back from kilometers (km) to feet (ft)?

To reverse the calculation from km to ft, multiply your kilometer value by the inverse factor 3,280.8399 (or divide by 0.0003048). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round ft to km results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 10000 ft ≈ 3.05 km). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Feet to Kilometers Converter

Enter the length in feet below to convert it to kilometers.

Kilometers to Feet (km → ft)

Convert Feet to Kilometers

Enter a value in feet (ft) to convert to kilometers (km).

Value (ft)Dec or Frac

From

Quick Fractions (ft):(Tip: type mixed numbers like 5 3/8)

Result

•

3.048kilometers

10000 ft = 3.048 km

Result updates automatically

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Equivalent Measurements Across UnitsFor 10000 ft

Millimeters3,048,000 mm

Centimeters304,800 cm

Meters3,048 m

Inches120,000 in

Yards3,333.33333 yd

Suggested Conversions

Reference:NIST OWM (SI Units — Length)

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Feet to Kilometers Conversion Chart (1–40 Continuous)

Continuous 1 to 40 feet lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.

Common values highlighted · Round-half-up & reduced to lowest terms

Feet (ft)	Decimal (km)	Fraction — Nearest 1/64 (Reduced)	Nearest 1/16 (Tape)
1 ft★ Common	0.000305 km	0 km	0 km
2 ft★ Common	0.00061 km	0 km	0 km
3 ft★ Common	0.000914 km	0 km	0 km
4 ft	0.001219 km	0 km	0 km
5 ft★ Common	0.001524 km	0 km	0 km
6 ft★ Common	0.001829 km	0 km	0 km
7 ft	0.002134 km	0 km	0 km
8 ft★ Common	0.002438 km	0 km	0 km
9 ft	0.002743 km	0 km	0 km
10 ft★ Common	0.003048 km	0 km	0 km
11 ft	0.003353 km	0 km	0 km
12 ft★ Common	0.003658 km	0 km	0 km

UnitConvertersGo · https://unitconvertersgo.com/length/feet-to-km

How to Convert Feet to Kilometers

To convert feet to kilometers, multiply the length by the following conversion ratio: 0.0003048 kilometers/foot.

Since one foot is equal to 0.0003048 kilometers, you can use this simple formula to convert:

kilometers = feet × 0.0003048

The length in kilometers is equal to the length in feet multiplied by 0.0003048.

For example, here's how to convert 10000 feet to kilometers using the formula above.

kilometers = (10000' × 0.0003048) = 3.048 km

How Many Kilometers Are in a Foot?

There are 0.0003048 kilometers in a foot, which is why we use this value in the formula above.

1' = 0.0003048 km|1 km = 3,280.839895 ft

Our foot fraction and decimal calculator can convert feet and kilometers, and it automatically converts the results to US customary, imperial, and SI metric values.

Feet and kilometers are both units used to measure length. Keep reading to learn more about each unit.

What Is a Foot?

A foot is a US customary and imperial unit of length equal to 12 inches or 1/3 of a yard. Under the 1959 International Yard and Pound Agreement, one foot is legally defined as exactly 0.3048 meters (30.48 centimeters). [1]

Feet are widely used in the United States, Canada, and the United Kingdom for human height, building construction, real estate floor plans, and aviation altitude. Feet can be abbreviated as ft; for example, 1 foot can be written as 1 ft.

Feet can also be denoted using the ′ symbol, known as a prime (or a single quote ' for convenience). For example, 5 feet 10 inches is frequently written as 5′ 10″ or 5' 10".

A standard classroom ruler is exactly 1 foot (12 inches or 30.48 cm) in length.

Feet are measured using 12-inch rulers, carpenter's folding rules, 25-foot steel tape measures, and laser distance meters across residential framing, architecture, and surveying.

Explore all length conversions in our Length Converter.

What Is a Kilometer?

A kilometer is a unit of length equal to 1,000 meters (m), the base unit for length. Metric unit equal to 1,000 meters. [2]

The kilometer is classified as an International System of Units (SI) unit of length. Kilometers can be abbreviated as km; for example, 1 kilometer can be written as 1 km.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilometer (km) a convenient decimal multiple of the meter (m).

In practice, kilometers (km) are widely used across large-scale industrial, bulk, and macro-level length specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

Learn more about kilometers in our Length Converter.

When converting length between feet (ft) and kilometers (km), keep full floating-point precision (1' = 0.0003048 km; 1 km = 3,280.839895 ft) during intermediate calculations and round only the final kilometer figure to match your instrument tolerance.

More Foot & Kilometer Conversions

Need to calculate in the opposite direction? Use our kilometers to feet converter (km to ft) to switch your starting unit immediately. You can also explore related tools such as converting miles to kilometers, converting nautical miles to kilometers, or converting feet to meters.

Convert from Feet

Convert to Kilometers

Frequently Asked Questions

There are 0.0003048 kilometers (km) in 1 foot (ft). Conversely, 1 kilometer (km) is equal to 3,280.8399 feet (ft).

Length Converter

Quick Info

Direct Factor: 1 foot (ft) equals 0.0003048 kilometers (km).
Inverse Factor: 1 kilometer (km) equals 3,280.8399 feet (ft).
Formula: kilometers = feet × 0.0003048.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Foot (ft)

Imperial unit equal to 12 inches (0.3048 meters exactly).

Kilometer (km)

Metric unit equal to 1,000 meters.

Meter (m)

The fundamental SI unit of length, defined by the speed of light in vacuum.

References

[1]NIST OWM · SI Units — Length
Source
[2]BIPM · SI Base Unit: Metre (m)
Source
[3]NIST HB 133 · NIST Handbook 133 (2019 Ed.)
Source

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References

NIST · BIPM · ISO

[1]
NIST OWM (SI Units — Length)·Length Metrology Standard — Feet (ft) to Kilometers (km)
NIST OWM Standard
[2]
BIPM (SI Base Unit: Metre (m))·Unit Specifications: Foot (ft) & Kilometer (km)
BIPM Specification
[3]
NIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (ft to km)
NIST HB 133 Reference

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