All HVAC Unit Converters — In One Place
Instantly convert BTU, Ton, kW, PSI, CFM, and more — built for HVAC professionals
100% Free · Instant ResultsFormulas are standard HVAC engineering conversions. Type in either box — results update live, no calculate button needed.
HVAC Unit Converter — Key Formulas
This HVAC unit converter handles the most common conversions technicians need on the job: BTU/hr to Tons, Tons to kW, PSI to Bar, and CFM to m³/h. One ton of refrigeration equals 12,000 BTU/hr, which equals approximately 3.517 kW. These conversions follow standard ASHRAE engineering definitions, so results match what’s printed on equipment nameplates and manufacturer datasheets.
This HVAC Unit Converter is especially useful when you’re switching between equipment made for different markets. A US-manufactured chiller nameplate will usually list capacity in Tons and pressure in PSI, while a European or Asian unit lists the same specs in kW and Bar. Instead of doing the math by hand on-site, technicians in the UAE and wider Gulf region use this converter to cross-check readings instantly, whether they’re commissioning new equipment, comparing spec sheets, or troubleshooting a system with mixed imperial and metric components.
Table of Contents
For the official unit definitions behind these conversions, see NIST’s reference on SI energy units. Field technicians in the UAE and Gulf region often need to switch between imperial (BTU, Ton, PSI) and metric (kW, Bar, m³/h) units depending on whether equipment is US-made or European/Asian-made — this converter handles both directions instantly.
Frequently Asked Questions
How many BTU are in 1 ton of AC?
1 ton of air conditioning equals 12,000 BTU per hour. This is the standard HVAC industry conversion used worldwide.
How do I convert PSI to Bar for refrigerant pressure?
Divide PSI by 14.5 to get Bar (1 Bar = 14.5 PSI). Use the HVAC Unit Converter above to convert refrigerant gauge readings instantly between PSI, Bar, and kPa.
What is CFM and how does it relate to airflow sizing?
CFM (Cubic Feet per Minute) measures airflow volume. It’s used to size ductwork and check ventilation rates. 1 CFM equals approximately 1.699 m³/h, which this converter calculates automatically.
Why do HVAC conversions matter in the Gulf region?
Most HVAC equipment sold in the UAE and wider Gulf region is imported — some from the US, where nameplates use BTU, Ton, and PSI, and some from Europe or Asia, where the same equipment is rated in kW, Bar, and m³/h. A technician quoting a job, ordering a replacement compressor, or checking a chiller’s rated capacity against site requirements needs to move between these two systems constantly. Getting a conversion wrong by even a small margin can lead to an undersized or oversized unit being ordered, wasted budget, and a callback to fix the mistake. This HVAC Unit Converter removes that risk by giving instant, ASHRAE-standard results for every common HVAC unit pair, so field decisions are based on accurate numbers rather than rough mental math.
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