Watts to British Thermal Units (W → BTU)
Formula
1 W = 0.0009478133944988911 BTUConversion Table
| W | BTU |
|---|---|
| 0 | 0 |
| 1.0000 | 0.00094781 |
| 2.0000 | 0.0018956 |
| 3.0000 | 0.0028434 |
| 4.0000 | 0.0037913 |
| 5.0000 | 0.0047391 |
| 6.0000 | 0.0056869 |
| 7.0000 | 0.0066347 |
| 8.0000 | 0.0075825 |
| 9.0000 | 0.0085303 |
| 10.000 | 0.0094781 |
| 11.000 | 0.010426 |
| 12.000 | 0.011374 |
| 13.000 | 0.012322 |
| 14.000 | 0.013269 |
| 15.000 | 0.014217 |
| 16.000 | 0.015165 |
| 17.000 | 0.016113 |
| 18.000 | 0.017061 |
| 19.000 | 0.018008 |
| W | BTU |
|---|---|
| 20.000 | 0.018956 |
| 21.000 | 0.019904 |
| 22.000 | 0.020852 |
| 23.000 | 0.021800 |
| 24.000 | 0.022748 |
| 25.000 | 0.023695 |
| 26.000 | 0.024643 |
| 27.000 | 0.025591 |
| 28.000 | 0.026539 |
| 29.000 | 0.027487 |
| 30.000 | 0.028434 |
| 31.000 | 0.029382 |
| 32.000 | 0.030330 |
| 33.000 | 0.031278 |
| 34.000 | 0.032226 |
| 35.000 | 0.033173 |
| 36.000 | 0.034121 |
| 37.000 | 0.035069 |
| 38.000 | 0.036017 |
| 39.000 | 0.036965 |
| W | BTU |
|---|---|
| 40.000 | 0.037913 |
| 41.000 | 0.038860 |
| 42.000 | 0.039808 |
| 43.000 | 0.040756 |
| 44.000 | 0.041704 |
| 45.000 | 0.042652 |
| 46.000 | 0.043599 |
| 47.000 | 0.044547 |
| 48.000 | 0.045495 |
| 49.000 | 0.046443 |
| 50.000 | 0.047391 |
| 51.000 | 0.048338 |
| 52.000 | 0.049286 |
| 53.000 | 0.050234 |
| 54.000 | 0.051182 |
| 55.000 | 0.052130 |
| 56.000 | 0.053078 |
| 57.000 | 0.054025 |
| 58.000 | 0.054973 |
| 59.000 | 0.055921 |
| W | BTU |
|---|---|
| 60.000 | 0.056869 |
| 61.000 | 0.057817 |
| 62.000 | 0.058764 |
| 63.000 | 0.059712 |
| 64.000 | 0.060660 |
| 65.000 | 0.061608 |
| 66.000 | 0.062556 |
| 67.000 | 0.063503 |
| 68.000 | 0.064451 |
| 69.000 | 0.065399 |
| 70.000 | 0.066347 |
| 71.000 | 0.067295 |
| 72.000 | 0.068243 |
| 73.000 | 0.069190 |
| 74.000 | 0.070138 |
| 75.000 | 0.071086 |
| 76.000 | 0.072034 |
| 77.000 | 0.072982 |
| 78.000 | 0.073929 |
| 79.000 | 0.074877 |
Watts to British Thermal Units Conversion
Converting Watts (W) to British Thermal Units (BTU) is a common energy and power conversion. 1 W equals 0.000948 BTU. For example, 100 W is equal to 0.094781 BTU.
Quick Mental Math: Watts to British Thermal Units
For energy conversions, identify the unit scale difference in the prefix or definition.
Why is converting Watts to British Thermal Units tricky?
Energy unit conversions involve non-linear factors across different measurement systems.
Quick Reference Values
1 W = 0.000948 BTU. 5 W = 0.004739 BTU. 10 W = 0.009478 BTU. 25 W = 0.023695 BTU. 50 W = 0.047391 BTU. 100 W = 0.094781 BTU.
What is Watts?
Watts (W) is a unit of energy and power. The watt (W) is the SI unit of power, defined as one joule per second (1 W = 1 J/s). It measures the rate of energy transfer or conversion. The watt is named after James Watt and standardized by the BIPM according to the International System of Units [bipm-si-brochure]. Named after engineer James Watt in the late 19th century, the watt was adopted officially by the CIPM and BIPM to quantify mechanical and electrical power consistently. It became part of the SI base units in 1960 [bipm-si-brochure]. Watts measure power output and consumption in electrical, mechanical, and thermal systems globally. It is used across industries, including electronics, automotive, and power generation, following ISO and NIST standards [nist-sp-811].
What is British Thermal Units?
British Thermal Units (BTU) is a unit of energy and power. The British Thermal Unit (BTU) measures energy and is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. One BTU equals approximately 1055.06 joules in the International System of Units (SI). This unit is standardized for heating and cooling system capacities and energy content calculations [nist-sp-811]. The BTU originated in the mid-19th century during the industrial revolution to quantify heat energy for steam engines and heating systems. It was standardized by engineering societies to unify thermal energy measurements in the United Kingdom and the United States [nist-sp-811]. BTU remains widely used in the United States, the United Kingdom, and Canada for HVAC system ratings and energy content in fuels. It is recognized by industry standards and energy regulations but is less common in countries using the SI system exclusively [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: watt, wat, wats, wattss, british thermal unit, btu unit, british therm unit, btu energy, british thermals unit. All of these refer to the Watts to British Thermal Units conversion.