How do you convert kilowatts to watts?

To convert kilowatts (kW) to watts (W), multiply the power in kilowatts by 1,000 (watts = kilowatts × 1,000).

What is 5 kilowatts in watts?

5 kilowatts (5 kW) is equal to 5,000 watts (5,000 W).

Which is larger, 1 kilowatt (kW) or 1 watt (W)?

One kilowatt (kW) is larger than one watt (W). Specifically, 1 kW contains 1,000 W, whereas 1 W is 0.001 kW.

How do I convert back from watts (W) to kilowatts (kW)?

To reverse the calculation from W to kW, multiply your watt value by the inverse factor 0.001 (or divide by 1,000). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round kW to W results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 kW ≈ 5,000.00 W). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Kilowatts to Watts Converter

Enter the power in kilowatts below to convert it to watts.

Watts to Kilowatts (W → kW)

Convert Kilowatts to Watts

Enter a value in kilowatts (kW) to convert to watts (W).

Value (kW)

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Result

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5,000watts

5 kW = 5,000 W

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Suggested Conversions

Reference:NIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))

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Kilowatt to Watt Conversion Table

Table showing various kilowatt measurements converted to watts. Click any preset value or arrow to load it into the converter.

Kilowatts (kW)	Watts (W)
1 kW	1,000 W
2 kW	2,000 W
2.5 kW	2,500 W
5 kW	5,000 W
10 kW	10,000 W
15 kW	15,000 W
20 kW	20,000 W
25 kW	25,000 W
30 kW	30,000 W
50 kW	50,000 W

How to Convert Kilowatts to Watts

To convert kilowatts to watts, multiply the power by the following conversion ratio: 1,000 watts/kilowatt.

Since one kilowatt is equal to 1,000 watts, you can use this simple formula to convert:

watts = kilowatts × 1,000

The power in watts is equal to the power in kilowatts multiplied by 1,000.

For example, here's how to convert 5 kilowatts to watts using the formula above.

watts = (5 kW × 1,000) = 5,000 W

How Many Watts Are in a Kilowatt?

There are 1,000 watts in a kilowatt, which is why we use this value in the formula above.

1 kW = 1,000 W|1 W = 0.001 kW

Our kilowatt to watt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Kilowatts and watts are both units used to measure power. Keep reading to learn more about each unit.

What Is a Kilowatt?

A kilowatt is a unit of power equal to 1,000 watts (W), the base unit for power. Equal to 1,000 Watts (1 kJ/s). [1]

The kilowatt is classified as a metric and SI-compatible unit of power. Kilowatts can be abbreviated as kW; for example, 1 kilowatt can be written as 1 kW.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilowatt (kW) a convenient decimal multiple of the watt (W).

In practice, kilowatts (kW) are widely used across large-scale industrial, bulk, and macro-level power specifications within SI metric workflows, engineering documentation, and technical data sheets.

Learn more about kilowatts in our Power Converter.

What Is a Watt?

Coherent SI unit of power equal to 1 Joule per second (1 J/s). It serves as a primary reference unit for measuring power across scientific and practical applications. [2]

The watt is classified as an International System of Units (SI) unit of power. Watts can be abbreviated as W; for example, 1 watt can be written as 1 W.

As the primary coherent reference unit for power in this category, all other power units are mathematically anchored to the watt (W).

In practice, watts (W) are widely used across standard power applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

Learn more about watts in our Power Converter.

When converting power between kilowatts (kW) and watts (W), keep full floating-point precision (1 kW = 1,000 W; 1 W = 0.001 kW) during intermediate calculations and round only the final watt figure to match your instrument tolerance.

More Kilowatt & Watt Conversions

Need to calculate in the opposite direction? Use our watts to kilowatts converter (W to kW) to switch your starting unit immediately. You can also explore related tools such as converting horsepower (hp) to watts, converting btu/hr to watts, or converting kilowatts to horsepower (hp).

Convert from Kilowatts

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Frequently Asked Questions

There are 1,000 watts (W) in 1 kilowatt (kW). Conversely, 1 watt (W) is equal to 0.001 kilowatts (kW).

Power Converter

Quick Info

Direct Factor: 1 kilowatt (kW) equals 1,000 watts (W).
Inverse Factor: 1 watt (W) equals 0.001 kilowatts (kW).
Formula: watts = kilowatts × 1,000.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Kilowatt (kW)

Equal to 1,000 Watts (1 kJ/s).

Watt (W)

Coherent SI unit of power equal to 1 Joule per second (1 J/s).

Megawatt (MW)

Equal to 1,000,000 Watts (1,000 kW).

References

[1]NIST SP 811 · NIST SP 811 App. B.9 (Power & Radiant Flux)
Source
[2]NIST CUU · Derived SI Unit: Watt (W)
Source
[3]BIPM · SI Brochure (9th Ed.) — Power
Source

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References

NIST · BIPM · ISO

[1]
NIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Kilowatts (kW) to Watts (W)
NIST SP 811 Standard
[2]
NIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Kilowatt (kW) & Watt (W)
NIST CUU Specification
[3]
BIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (kW to W)
BIPM Reference

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