LaserCalc Mobile

LaserCalc is a professional HVAC load calculation tool for contractors, technicians, and engineers working in the United States. Calculations follow the Manual J 8th Edition methodology and draw on 2025 ASHRAE climatic design data covering thousands of US cities and weather stations.

Run the calculation in the field, in front of the house, and leave with a report ready to hand over.

CALCULATIONS YOU CAN STAND BEHIND
• Heating and cooling loads using the Manual J 8th Edition methodology
• 2025 ASHRAE climatic design data for thousands of US cities and weather stations
• Recommended capacity in BTU and tons of refrigeration

FAST IN THE FIELD
• Automatic square footage lookup from the address
• Pick the method that fits the job: quick block estimate or detailed manual entry
• Room-by-room load calcs for tighter equipment sizing

REPORTS FOR YOUR CUSTOMERS
• Shareable PDF reports, sent from your phone
• Add your company logo to every report
• Clients and load calcs save automatically and follow you across devices

AVAILABLE IN SPANISH
The app follows your device language. You can also choose English or Spanish in Settings.

Note: LaserCalc is built for properties in the United States. Address lookup and climate data cover the US only.

Climatic Design Data © 2025 ASHRAE, www.ashrae.org. Used with permission. ASHRAE has not endorsed, reviewed, or certified this product.

Final equipment selection is the responsibility of the installing contractor and should be based on manufacturer specifications.