HVAC Unit Converter - Tools

HVAC Unit Converter Pro helps HVAC technicians, engineers, refrigeration mechanics, and contractors convert between units instantly. Convert between all common air conditioning and refrigeration units instantly across 8 categories and 40+ unit types — eliminating calculation errors on job sites.

8 CONVERSION CATEGORIES:

Temperature — °F, °C, K, °R (Rankine) for climate zones and equipment specs
Pressure — PSI, kPa, bar, in. Hg, mm Hg, atm, Pa, in. w.c. (static pressure), microns (vacuum) for gauges and evacuation
Energy & Heat — BTU, kJ, kcal, Wh, therm for load calculations
Airflow (CFM) — CFM, L/s, m³/h, m³/s, m³/min for ductwork and ventilation
Length & Duct — in, ft, mm, cm, m for duct sizing and pipe runs
Area Calculations — ft², m², in² for room dimensions and surface area
Volume & Capacity — gal, L, ft³, m³ for tank and system volumes
Power & Output — BTU/h, W, kW, ton (refrigeration), hp, kcal/h for equipment ratings

SMART FEATURES:
Instant Conversion — Results update as you type, no button press needed
Bidirectional Conversion — One tap to reverse conversion direction instantly
Swap Units — Toggle between any unit pair in the same category
Works 100% Offline — Field calculations without internet connection
Accuracy Verified — Professional-grade precision for system design
English & Spanish Support — Bilingual interface for diverse teams

WHY HVAC PROFESSIONALS USE THIS APP:
Eliminates manual conversion errors that cause mistakes
Faster unit calculations than reference tables and charts
Cross-checks between imperial and metric systems instantly
Prevents equipment sizing errors from unit mistakes
Works on every job site without cellular connection
Dark theme prevents eye strain during outdoor work

CONVERSION EXAMPLES HVAC TECHS USE DAILY:
PSI to kPa for pressure readings on gauge conversions
BTU to kW for international equipment specifications
CFM to m³/s for ductwork design in metric regions
°F to °C for climate zone design temperature conversions
Tons to kW for heat pump capacity documentation
BTU/h to watts for electrical load calculations

PERFECT FOR:
HVAC technicians on air conditioning service calls
HVAC field technicians calculating refrigeration requirements
Refrigeration mechanics sizing refrigerant lines
AC contractors preparing equipment specifications
HVAC design engineers in international projects
HVAC apprentices learning unit conversions
Building maintenance engineers managing equipment
Commercial HVAC system commissioning work

A tool trusted by HVAC technician teams nationwide.

Part of HVACTools Suite — the complete HVAC technician and refrigeration calculator app collection for field diagnostics and system design.

OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE
The following features require a separate one-time in-app purchase. They are not required to use the calculator:
• Unlimited saved calculation history
• PDF export of results
• Dark theme
• Ad-free experience

Recent changes:
Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.