Diagnostic Calculators
Browse HVAC and electrical diagnostic calculators.
BTU / Thermal
BTU to Ton
Convert cooling capacity to standard tons
BTU / Thermal
Ton to BTU
Convert AC tonnage to thermal BTU/hr rating
Electrical
Electricity Cost
Compute appliance consumption and monthly tariffs
BTU / Thermal
Room BTU Calc
Estimate target room cooling & heat load sizing
Electrical
Voltage Drop
Calculate terminal voltage loss over wire distance
Electrical
Capacitor Size
Determine starting & running microfarad rating
Electrical
Current Calc
Find operating current using Ohm's Law
System
Gas Pressure
Estimate gas saturation points and charging margins