HVAC ENGINEERING TOOL

Cooling Capacity Converter

Convert TR, kW, BTU/h and kcal/h using International Table energy conventions.

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Formula / Method

Capacity(to) = Capacity(from) × factor(from) ÷ factor(to)

Engineering Method & Assumptions

1 TR = 12,000 BTU_IT/h.
1 kcal_IT = 4,186.8 J.
No intermediate rounding.

Applicability: Capacity-unit conversion does not constitute a cooling-load calculation or equipment selection.

WHEN TO USE THIS TOOL

Useful during hydronics & capacity work.

Convert cooling duty into the flow or capacity units used by different teams and equipment schedules.
Perform early-stage hydronic checks before detailed pump, pipe or equipment selection.
Cross-check design assumptions such as ΔT, internal diameter and operating flow before issue.

Frequently asked questions

What is one ton of refrigeration?

One TR is defined here as 12,000 BTU_IT/h.

How many kW are in one TR?

One TR is 3.5168528420667 kW using the approved International Table convention.

Why can kcal/h values differ slightly?

References may use different calorie conventions or rounded field factors. This tool uses kcal_IT with 4,186.8 J per kcal.