What is a Terameter [Tm], a unit of length measurement
The Terameter is a unit of measurement of length. A Terameter (Tm) is a decimal multiple of the base metric (SI) measurement unit of length, the meter. The SI prefix Tera stands for trillion. The Terameter (Tm) is equal to 1,000,000,000,000 meters, that is 1 with 12 zeroes.