Free Tools & Calculators
Free calculators for sizing, clearances, and cost — no login required.
PSU Wattage Calculator
Pick your CPU and GPU, get a real PSU recommendation with headroom for OC and ATX 3.1 transient spikes.
Case Compatibility Checker
Will your GPU + AIO actually fit? Real clearance numbers from 13 popular cases.
Monitor Size Comparison
Compare physical size, pixel density, and ideal viewing distance side by side.
RAM Compatibility Checker
DDR5 speeds, EXPO/XMP sweet spots, capacity ceilings — by CPU platform.
Render Time Estimator
Blender, Resolve, and Cinebench times for any CPU + GPU combo — calibrated to real benchmarks.
Power Cost Calculator
What does running your rig actually cost? Annual kWh + dollars by load profile.
Tools open in their own pages — calculators run client-side, no data leaves your browser. Got a calculator you wish we had? Tell us about it.