Free AC Sizing calculator. If you’re wondering “What size air conditioner do I need?” This BTU and AC tonnage calculator can help. *Super easy* to use based on your climate and insulation …

Jun 3, 2025 · You can simply locate the size of your home, and find out what size of AC or Heat Pump you will need, as well as the estimated furnace size that your home will also require.

Our free, online HVAC load calculator allows you to quickly determine the amount of heating and cooling a residential building needs based on its specs and design.

To determine the right size HVAC system for your home, use our HVAC Sizing Calculator. Enter your home's square footage, year built, and zip code to get an estimate.

This HVAC Load Calculator estimates the size of your heating and cooling system in BTU's. The heat load estimate is based on your climate region, total square footage.

Calculate HVAC load based on room size, insulation, and climate. Get the right BTU estimate to choose the best heating and cooling system for your space.

Calculate the ideal HVAC size for your space with our HVAC Sizing Calculator. Get tonnage, BTU, and energy costs instantly.

A comprehensive suite of free online HVAC calculation tools for professionals, contractors, engineers, and students. Includes calculators for AC sizing, BTU load, ductwork, and more.

Professional-grade calculators for accurate system sizing, energy efficiency analysis, and cost estimation. All tools follow industry standards and best practices. Determine whether it's more …

Use this free HVAC sizing calculator to estimate required heating and cooling capacity based on square footage, ceiling height, insulation, and occupants. Perfect for homeowners and …