Femtowatt is 1e-15 watt units.
Femtowatts to Ton of refrigerations Converter — fW to TR
Convert Femtowatt (fW) to Ton of refrigeration (TR) using the exact conversion factor (1 femtowatt = 2.843451e-19 ton of refrigeration). See the formula, worked examples, and conversion table.
Femtowatts to Ton of refrigerations converter
Converter
Power Converter
Convert watts, horsepower, refrigeration tons, BTU per hour, and engineering power units.
Context values
Some unit families need one extra value for a physically accurate result.
Cooling power equal to 12,000 BTU/h.
Result = input x 1e-15 / 3516.852842.
Power uses the watt as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtowatts to Ton of refrigerations
Femtowatt and Ton of refrigeration both describe power output, and the conversion is a routine part of comparing an engine or motor's spec sheet across countries that use different power units. Specifically: Femtowatt is 1e-15 watt units, and cooling power equal to 12,000 BTU/h.
Formula
ton of refrigerations = femtowatts × 2.843451e-19
This factor comes from each unit's defined relationship to the category's base unit: 1 femtowatt equals 1e-15 base units, and 1 ton of refrigeration equals 3516.85284207 base units, so dividing one by the other gives the direct femtowatt-to-ton of refrigeration factor of 2.843451e-19.
Simple example
1 fW × 2.843451e-19 = 2.843451e-19 TR
1 femtowatt = 2.843451e-19 ton of refrigerations.
Real-world example
100 fW × 2.843451e-19 = 2.843451e-17 TR
100 femtowatts = 2.843451e-17 ton of refrigerations.
Conversion table
| Femtowatt (fW) | Ton of refrigeration (TR) |
|---|---|
| 1 fW | 2.843451e-19 TR |
| 10 fW | 2.843451e-18 TR |
| 100 fW | 2.843451e-17 TR |
| 500 fW | 1.421726e-16 TR |
| 1,000 fW | 2.843451e-16 TR |
| 5,000 fW | 1.421726e-15 TR |
Reverse conversion: Ton of refrigeration to Femtowatt
2.843451e-19 TR × 3.516853e+18 = 0.9999998731 fW
2.843451e-19 ton of refrigerations = 0.9999998731 femtowatts.
femtowatts = ton of refrigerations × 3.516853e+18
For a page dedicated to this direction, see Ton of refrigeration to Femtowatt.
Understanding the Femtowatt (fW)
Femtowatt is 1e-15 watt units.
Understanding the Ton of refrigeration (TR)
Cooling power equal to 12,000 BTU/h.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ton of refrigerations are in 1 femtowatt?
1 femtowatt equals 2.843451e-19 ton of refrigerations, using the exact defined conversion factor rather than an estimate.
How do I convert femtowatt to ton of refrigeration?
Multiply the femtowatt value by 2.843451e-19. The converter above does this instantly to whatever precision you set.
How do I convert ton of refrigeration back to femtowatt?
Use the reverse factor: 1 ton of refrigeration equals 3.516853e+18 femtowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtowatt?
Femtowatt (fW) is a unit of power.
What is a ton of refrigeration?
Ton of refrigeration (TR) is a unit of power.
Is the femtowatt to ton of refrigeration conversion exact?
Yes. Both femtowatt and ton of refrigeration are defined by fixed standards rather than physical artifacts, so the factor of 2.843451e-19 used above is exact to as many digits as you choose to display.