Case Airflow CFM Calculator
Calculate net case airflow from intake and exhaust fan CFM ratings. Determine if your PC case has positive, negative, or neutral air pressure for optimal cooling.
Free PC Build Calculators
7 toolsPSU, cooling, airflow, and budget allocation tools. Browse our free pc build tools below — no sign-up required.
Cooling Requirement Calculator
Calculate the cooling capacity needed for your gaming PC. Enter total TDP to find whether air cooling or an AIO liquid cooler is recommended for your build.
Fan Noise Efficiency Calculator
Calculate fan noise efficiency by dividing CFM airflow by dBA noise level. Compare fans to find the quietest cooling per unit of airflow for your PC build.
PC Build Budget Allocator
Allocate your PC build budget across GPU, CPU, RAM, storage, motherboard, PSU, and case. Get recommended dollar amounts for each component by percentage.
PSU Efficiency Calculator
Calculate actual wall power draw from your PSU's efficiency rating and system load. See how much electricity your gaming PC really consumes from the outlet.
PSU Wattage Calculator
Calculate the right PSU wattage for your gaming PC build. Enter component TDP values to get the recommended power supply size with a 25% safety headroom margin.
Total TDP Calculator
Sum up TDP values for all PC components to find your total system power draw. Enter CPU, GPU, RAM, storage, and fan power to calculate total thermal output.