Calculate delta T (ΔT), the change in temperature, as final minus initial in °C, °F or K, or solve for the initial or final temperature.

Delta T Formula

The following formula is used to calculate delta T.

ΔT = T2 - T1
  • Where ΔT is the change in temperature (delta T)
  • T2 is the final temperature
  • T1 is the initial temperature

To calculate delta T, convert both absolute temperatures to the same scale and subtract initial from final. A positive result means warming; a negative result means cooling. For temperature differences, Δ°C = ΔK and Δ°F = 1.8 × Δ°C; do not add the 32°F or 273.15K offsets to a difference. Choose Final temperature or Initial temperature to use the corresponding rearrangement. Ordinary thermodynamic temperatures below absolute zero are rejected.

Delta T Definition

Delta T, denoted ΔT, is the term and symbol used to describe the change in temperature of a substance, system, or object. The delta in delta T denotes change, and the T denotes temperature.

Delta T Example

How to calculate delta T?

  1. First, determine the initial temperature.

    Measure the initial temperature of the material.

  2. Next, determine the final temperature.

    Measure the final temperature of the material over the time period.

  3. Finally, calculate the delta T.

    Calculate the change in temperature by subtracting the initial temperature from the final temperature.

FAQ

What is delta?

Delta is a symbol used in mathematics and science to describe the change in a value. For example ΔT is the change in temperature while ΔP is the change in pressure and so forth.