Formula & worked example
kW/ton=electrical kW/TR; COP=3.5168525/(kW/ton).
600 kW serving 1,000 TR is 0.60 kW/ton and about COP 5.86.
Plant engineering calculator · Updated Sep 17, 2026
Chiller kW per Ton Calculator — Efficiency, COP & Annual Energy Cost
Calculate chiller kW/ton, COP, EER-equivalent, annual electricity use and cost from measured electrical input and cooling output.
Inputs
Live engineering result
Efficiency 0.6 kW/ton
COP 5.8614208
EER equivalent 19.999998
Annual electricity 3,000 MWh
Annual electricity cost 360,000
Assumptions & limits
- Use simultaneous stabilized input power and cooling output readings.
- Plant kW/ton differs from chiller-only kW/ton when pumps and towers are included.
Frequently asked questions
What does this Chiller kW per Ton Calculator calculate?
Calculate chiller kW/ton, COP, EER-equivalent, annual electricity use and cost from measured electrical input and cooling output.
Can I use the result for equipment selection?
Use the result as an engineering screening and cross-check. Confirm final selections against manufacturer performance data, design conditions, applicable standards and local code.
Why does MAXScanner show assumptions?
Plant calculations can move materially with pressure, temperature, fluid properties, diversity and operating conditions. Visible assumptions make the result auditable.