Convert kilocalorie (IT)/minute to femtowatt
Please provide values below to convert kilocalorie (IT)/minute [kcal/min] to femtowatt [fW], or Convert femtowatt to kilocalorie (IT)/minute.
How to Convert Kilocalorie (It)/minute to Femtowatt
1 kcal/min = 6.978e+16 fW
Example: convert 15 kcal/min to fW:
15 kcal/min = 15 × 6.978e+16 fW = 1.0467e+18 fW
Kilocalorie (It)/minute to Femtowatt Conversion Table
| kilocalorie (IT)/minute | femtowatt |
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Kilocalorie (It)/minute
A unit of power representing the energy expended or transferred at a rate of one kilocalorie per minute.
History/Origin
The kilocalorie (kcal) has historically been used to measure energy in food and nutrition, while the minute as a time unit has been standard in timekeeping. Combining these, kcal/min was used to quantify power, especially in contexts like metabolic rates and energy expenditure, before the widespread adoption of the watt as the SI unit of power.
Current Use
The kcal/min is primarily used in fields such as physiology and sports science to express rates of energy expenditure, though it is less common today with the adoption of the watt (W) as the standard SI unit of power.
Femtowatt
A femtowatt (fW) is a unit of power equal to 10^-15 watts, representing an extremely small amount of power.
History/Origin
The femtowatt was introduced as part of the SI prefixes to measure very small quantities of power, particularly in scientific and technological contexts, gaining recognition as the need to quantify minute power levels grew.
Current Use
Femtowatts are used in fields such as quantum physics, nanotechnology, and optical measurements, where precise measurement of extremely low power levels is required.