Root Mean Square Speed
v_rms = √(3RT/M)
How to Use This Calculator
Enter gas temperature (K) and molar mass (g/mol). For air at room temperature, T ≈ 300 K and M ≈ 28.97 g/mol.
Formula
v_rms = √(3 R T / M)
Frequently Asked Questions
Units of M?
Use kg/mol in the formula. This tool accepts g/mol and converts internally.