How do you convert kilometers to feet?

To convert kilometers (km) to feet (ft), multiply the length in kilometers by 3,280.8399 (feet = kilometers × 3,280.8399).

What is 5 kilometers in feet?

5 kilometers (5 km) is equal to 16,404.19948 feet (16,404.19948 ft).

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

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

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

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

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

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 km ≈ 16,404.20 ft). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Kilometers to Feet Converter

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

Feet to Kilometers (ft → km)

Convert Kilometers to Feet

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

Value (km)

From

Result

•

16,404.199475066feet

5 km = 16,404.199475066 ft

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Equivalent Measurements Across UnitsFor 5 km

Millimeters5,000,000 mm

Centimeters500,000 cm

Meters5,000 m

Inches196,850.39370078 in

Feet16,404.19948 ft

Yards5,468.06649 yd

Suggested Conversions

Reference:NIST OWM (SI Units — Length)

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Kilometers to Feet Conversion Chart (1–40 Continuous)

Continuous 1 to 40 kilometers 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

Kilometers (km)	Decimal (ft)	Fraction — Nearest 1/64 (Reduced)	Nearest 1/16 (Tape)
1 km★ Common	3,280.839895 ft	3280 27/32 ft	3280 13/16 ft
2 km★ Common	6,561.67979 ft	6561 11/16 ft	6561 11/16 ft
3 km★ Common	9,842.519685 ft	9842 33/64 ft	9842 1/2 ft
4 km	13,123.35958 ft	13123 23/64 ft	13123 3/8 ft
5 km★ Common	16,404.199475 ft	16404 13/64 ft	16404 3/16 ft
6 km★ Common	19,685.03937 ft	19685 3/64 ft	19685 1/16 ft
7 km	22,965.879265 ft	22965 7/8 ft	22965 7/8 ft
8 km★ Common	26,246.71916 ft	26246 23/32 ft	26246 3/4 ft
9 km	29,527.559055 ft	29527 9/16 ft	29527 9/16 ft
10 km★ Common	32,808.39895 ft	32808 13/32 ft	32808 3/8 ft
11 km	36,089.238845 ft	36089 15/64 ft	36089 1/4 ft
12 km★ Common	39,370.07874 ft	39370 5/64 ft	39370 1/16 ft

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

How to Convert Kilometers to Feet

To convert kilometers to feet, multiply the length by the following conversion ratio: 3,280.839895 feet/kilometer.

Since one kilometer is equal to 3,280.839895 feet, you can use this simple formula to convert:

feet = kilometers × 3,280.839895

The length in feet is equal to the length in kilometers multiplied by 3,280.839895.

For example, here's how to convert 5 kilometers to feet using the formula above.

feet = (5 km × 3,280.839895) = 16,404.1994751 ft

How Many Feet Are in a Kilometer?

There are 3,280.839895 feet in a kilometer, which is why we use this value in the formula above.

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

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

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

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. [1]

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.

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). [2]

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.

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

More Kilometer & Foot Conversions

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

Convert from Kilometers

Convert to Feet

Frequently Asked Questions

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

Length Converter

Quick Info

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

Units Comparison

Kilometer (km)

Metric unit equal to 1,000 meters.

Foot (ft)

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

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

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