Therm to Millijoule Converter

A therm (thm) is a unit of energy equal to 100,000 BTUs or approximately 105.5 megajoules. It's commonly used for measuring natural gas consumption and energy content in the United States gas industry.

The therm was introduced in the early 20th century by the gas industry in the United States as a convenient unit for measuring and billing natural gas consumption. It provided a practical scale for residential and commercial gas usage where BTUs would result in large numbers.

Therms are primarily used in the United States for natural gas billing, gas appliance ratings, and energy content specifications for natural gas. They're found on residential and commercial gas bills, used in gas utility planning, and for measuring heating energy consumption.

A millijoule (mJ) is a unit of energy equal to one thousandth of a joule (10⁻³ J). It represents small amounts of energy, typically found in electronic circuits, small mechanical systems, and precision energy measurements.

The millijoule became important with the development of precision electronics and small-scale energy measurements. It was particularly useful for measuring energy in electronic pulses, small mechanical impacts, and low-energy physical and chemical processes.

Millijoules are used in electronics for measuring pulse energy, in precision mechanics for small impact measurements, in laser technology for pulse energy, and in materials testing for small-scale energy absorption measurements.