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 factors.

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.

An easy-to-use HVAC tool for calculating necessary thermal output capacity (in BTUs) This tool is based on the square foot method, with computations added for the most important values included, such as …

May 14, 2025 · Calculate the approximate heating and cooling loads for your space. This helps determine the appropriate HVAC system size needed for efficiency and comfort.

Free HVAC BTU and tonnage calculator. Calculate the correct system size for your home based on square footage, climate, insulation, and more.

The calculator uses your house size (square feet), climate zone, efficiency and equipment type (standard central air vs central heat pump) to show you exactly what size central air unit you need.

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.

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

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 cost …

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.