Cooling Energy Calculator
Cooling Energy: Cooling kW = heat load ÷ COP. Methodology stated, your own inputs only.
In short
Cooling Energy: Cooling kW = heat load ÷ COP. Methodology stated, your own inputs only.
Formula: Cooling kW = heat load ÷ COP. Energy = cooling kW × hours.
What this calculator does
Cooling Energy: Cooling kW = heat load ÷ COP. Methodology stated, your own inputs only. Worked example, questions and limitations included.
Use it to turn Heat to remove (usually IT load), Cooling system COP (your plant's measured or rated figure), Hours in the period into a checked result you can compare, copy, or rerun with different assumptions.
The page shows the formula, a numeric worked example, and the assumptions that affect this data centers calculation.
Inputs and what they mean
- Heat to remove (usually IT load)
- — number value.
- Cooling system COP (your plant's measured or rated figure)
- — number value.
- Hours in the period
- — number value.
How to use it
- Enter each value in the unit shown next to the box (use the unit converter first if your numbers are in other units).
- Check the breakdown to see every intermediate step.
- Read the limitations before relying on the result.
Formula
Methodology: coefficient of performance relationship from ASHRAE Handbook — Fundamentals.
COP varies with outdoor conditions and load; use a seasonal figure for annual estimates.
No COP is assumed.
Cooling kW = heat load ÷ COP. Energy = cooling kW × hours.
Inputs used: Heat to remove (usually IT load), Cooling system COP (your plant's measured or rated figure), Hours in the period.
Worked example
A year of cooling
- 160 ÷ 4 = 40 kW.
- 40 × 8,760 = 350,400 kWh.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
- Single average COP.
- Fans and pumps only included if they are in your COP.
- Results are estimates built only from the figures you enter. No electricity, fuel or gas price, equipment efficiency or benchmark is built in — tariffs vary by supplier, region and time, and equipment data must come from the manufacturer. Designs and installations must be checked by a qualified professional.
- The result depends on the values you enter for this cooling energy calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.
Reference: ASHRAE
Last reviewed:
Common questions
Where do I get COP?
From metered plant data (heat removed ÷ electricity used) or the manufacturer's seasonal rating. Check the formula, example, and limitations on this page before using the result for a real data centers decision.
Is there a target or industry average built in?
No. Results depend on climate, design, load and measurement point, so none is shown. Compare against your own history.
Does free cooling count?
Yes — it raises the seasonal COP. Enter the effective figure.
How do I use the Cooling Energy Calculator?
Enter the required values for Heat to remove (usually IT load), Cooling system COP (your plant's measured or rated figure), Hours in the period. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.
What formula does the Cooling Energy Calculator use?
Cooling kW = heat load ÷ COP. Energy = cooling kW × hours. The visible formula section above lists the calculation path and the edge cases the page handles, so the result can be checked without relying on the form alone.
Can the Cooling Energy Calculator be used for exact decisions?
Use it as a calculation aid, not as a substitute for checking the underlying rule, contract, policy, or professional advice that applies to your situation. When a result depends on local rules, personal details, prices, or dates, enter those values yourself and confirm them before acting.
Sources
Method based on ASHRAE.
Cite this page
Free Calculator. (2026, October 20). Cooling Energy Calculator. https://freecalculator.tech/tools/cooling-energy-calculator
"Cooling Energy Calculator." Free Calculator, 20 Oct. 2026, https://freecalculator.tech/tools/cooling-energy-calculator.
Cooling Energy Calculator — Free Calculator, https://freecalculator.tech/tools/cooling-energy-calculator
Related tools
PUE: PUE = total facility energy ÷ IT equipment energy. Methodology stated, your own inputs only.
IT Load: IT kW = servers × average W ÷ 1,000 + other IT kW. Methodology stated, your own inputs only.
Facility Load: Facility kW = IT + cooling + distribution losses + other. Methodology stated, your own inputs only.
Rack Power: Rack kW = devices × W ÷ 1,000. Methodology stated, your own inputs only.
Data Center Energy Cost: Cost = IT kW × PUE × hours × price. Methodology stated, your own inputs only.
Energy Per Rack: Energy per rack = energy ÷ occupied racks. Methodology stated, your own inputs only.