
HVAC Load Calculator: Manual J
BTU, AC, Tonnage & Heat Pump
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About
HVAC Load Calculator helps contractors run a Manual J load calculation, convert loads to BTU and tonnage, and check AC, furnace and heat pump sizing on the job site.
Enter the home's details, get heating and cooling loads in seconds, and send your client a clean PDF report.
WHAT YOU CAN DO
- Calculate heating and cooling loads (BTU/h) for a home
- Convert loads to tonnage and size AC systems
- Size heat pumps and check capacity against the load
- Check equipment against the load before you quote
- Save jobs and reopen them on any visit
- Share a client-ready PDF report
BUILT FOR HVAC PROFESSIONALS
Contractors, estimators and technicians who need fast, reliable sizing numbers in the field.
Not affiliated with ACCA. Results are estimates for planning and should be verified before installation.
Terms of services: https://hvacflatratepricingsoftware.com/terms-of-service/
Privacy Policy: https://hvacflatratepricingsoftware.com/privacy-policy/
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in HVAC Load Calculator
1.0
November 2, 2026
3
Subscriptions & In-App Purchases
HVAC Load Calculator Yearly
Your load, tons, duct sizes and PDF reports.
$49.991 Year
7 Days trial






