Sensible Heat Ratio Calculator

Calculate SHR and sensible/latent cooling capacity from airflow conditions.

Airflow

Entering Air (Return/Mixed)

Leaving Air (Supply)

SHR Formulas

SHR = Sensible / Total

Sensible: Qs = 1.08 × CFM × ΔT

Total: Qt = 4.5 × CFM × Δh

Latent: Ql = Qt - Qs

Typical SHR Values

ApplicationSHR Range
Dry climate (sensible dominated)0.85-0.95
Typical residential0.75-0.85
Standard commercial0.70-0.80
Humid climate0.65-0.75
High latent (pool, kitchen)0.50-0.65

Equipment SHR should match or be lower than space SHR for proper dehumidification.