Free PC Tools and Calculators
Free PC Tools and Calculators help you plan a build, choose worthwhile upgrades, check performance, and solve common setup questions without installing another program.
9 focused tools No sign-up Free to use
Plan what to buy or replace
Start here when you are choosing parts or planning an upgrade.
- PC Upgrade Checker See which upgrade adds the most frames and whether it fits your board, memory, and power supply. Check your PC
- Gaming PC UPS Size Calculator Get the UPS size and battery time for your graphics card and processor, or check whether the one you own is big enough. Pro Plan backup for several PCs and print every unit in one report. Size a UPS
Check how the parts work together
Estimate gaming performance and find the part that limits your frame rate.
- PC Bottleneck Calculator See whether the processor or graphics card limits your frame rate, by how much, and which upgrade fixes it. Check system balance
- FPS Calculator for Gaming Estimate a frame rate range for a desktop or laptop in a selected game, resolution, and upscaling mode. Pro Compare settings across up to 12 games, and see what an upgrade changes. Estimate FPS
Plan airflow, fans, and cooling
Plan case airflow and fan speeds, and watch the air move in 3D.
- PC Airflow Simulator Build your own fan layout in the Mini-ITX case and run it as often as you like. Pro opens every other case, with finer detail and saved builds. Model case airflow
- PC Airflow Calculator Compare intake and exhaust fan airflow to estimate the pressure balance inside a case. Plan case airflow
- PC Fan Curve Calculator Get the temperature and speed points for CPU, case, AIO, or graphics card fans, with RPM and noise at each one. Plan a fan curve
- AIO Radiator Placement See how warm your graphics card runs with the AIO radiator in each spot your case takes, such as the front, side or top. Compare radiator spots
Solve a home internet question
Use these focused helpers when the task sits outside PC hardware planning.
Read the PC before planning the next step
Browser calculators depend on the information you enter. CIB PC Reporter can collect hardware, temperature, drive health, and driver details from Windows, then export a report you can use while checking upgrades and performance.
Get CIB PC Reporter
Turn a result into a report you can hand over
Pro adds a Create report button to 4 of these calculators. Add your notes, business name, and logo, then print the report or save it as a PDF.
The same subscription opens the rest of Pro: PC Airflow Simulator, Multi-PC UPS Planner, FPS Game Planner, Upgrade Route Comparison, Bill Cutter, PC Reporter Pro, ISP Watchdog and RAM Optimizer Pro. It costs Was US$10, nowUS$5US$10 a month or Was US$60, nowUS$30US$60 a year.