Convert 18 BTU/Second (BTU/s) to Megawatt (MW).

18 BTU/Second equals 0.018991 Megawatt. Multiply 18 by 0.0010550559.

18 BTU/Second = 0.018991 Megawatt

Worked example: converting BTU/Second to Megawatt

Step 1 — start with the formula. MW = BTU/s × 0.0010550559
Step 2 — substitute your figure. 18 BTU/s × 0.0010550559
Step 3 — read the result. 18 BTU/s = 0.018991 MW
Step 4 — check it in reverse. BTU/s = MW × 947.8171203133 returns 18 BTU/s, which matches the figure you started with.

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0.018991

18 BTU/s = 0.018991 MW

Formula:

MW = BTU/s × 0.0010550559

With your value: 18 BTU/s = 0.01899101 MW

How big is that?

Everyday references on a logarithmic scale, all expressed in btu/second so you can sanity-check the result.

LED bulb (1/2.1e+3 your value)0.00853 BTU/s

Laptop (1/2.9e+2 your value)0.0616 BTU/s

Microwave oven (1/19 your value)0.948 BTU/s

Electric kettle (1/6.3 your value)2.84 BTU/s

Your value18.0 BTU/s

Family car engine (4.7× your value)85.3 BTU/s

Other BTU/Second to Megawatt conversions

13 BTU/s to MW 14 BTU/s to MW 15 BTU/s to MW 16 BTU/s to MW 20 BTU/s to MW 21 BTU/s to MW 24 BTU/s to MW Full BTU/Second to Megawatt converter

BTU/Second to Megawatt Conversion Table

BTU/Second (BTU/s)	Megawatt (MW)
0.5	0.000528
1	0.001055
2	0.00211
5	0.005275
10	0.010551
15	0.015826
20	0.021101
25	0.026376
50	0.052753
100	0.105506
250	0.263764
500	0.527528
1000	1.055056

Megawatt to BTU/Second Conversion Table

Megawatt (MW)	BTU/Second (BTU/s)
0.5	473.90856
1	947.81712
2	1,895.634241
5	4,739.085602
10	9,478.171203
15	14,217.256805
20	18,956.342406
25	23,695.428008
50	47,390.856016
100	94,781.712031
250	236,954.280078
500	473,908.560157
1000	947,817.120313

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

BTU/Second (BTU/s)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Megawatt (MW)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert BTU/Second to Megawatt

To convert from BTU/Second (BTU/s) to Megawatt (MW), multiply the value by 0.0010550559.

Formula: MW = BTU/s × 0.0010550559

Reverse: BTU/s = MW × 947.8171203133

Step-by-Step Example

Start with your value in BTU/Second. For example: 5 BTU/s
Multiply by the conversion factor: 5 x 0.0010550559
The result is: 0.005275 MW

About BTU/Second

The btu/second (BTU/s) is a unit of power. One btu/second equals 1055.055853 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Megawatt

The megawatt (MW) is a unit of power. One megawatt equals 1.000000 × 10^+6 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

What is 18 BTU/Second in Megawatt?

18 BTU/Second equals 0.018991 Megawatt.

How many Megawatt are in 1 BTU/Second?

There are exactly 0.0010550559 Megawatt in 1 BTU/Second. This means the conversion factor from BTU/Second to Megawatt is 0.0010550559.

What is the formula to convert BTU/Second to Megawatt?

The formula to convert BTU/Second to Megawatt is: MW = BTU/s × 0.0010550559. For example, to convert 10 BTU/Second to Megawatt, you would multiply 10 by 0.0010550559.

What is a BTU/Second?