Free sim racing FOV & setup calculators
Get the geometry right: correct FOV for your rig, triple screen angles, pixels per degree and race fuel plans. No sign-up, everything runs in your browser.
- 100% client-side math
- Single, ultrawide & triple rigs
- Per-game FOV notes
The toolkit
- FOV Calculator
The mathematically correct FOV for your screen and distance, with per-game notes for iRacing, ACC, LMU and more.
Most used - Triple Screen Calculator
Full rig FOV with per-screen angles, side screen rotation and bezel correction.
- PPD Calculator
Pixels per degree: compare resolutions, triples and VR for visual clarity.
- Fuel & Stint Calculator
Turn practice data into a race plan: fuel per stint, safe laps, stint count.
Why RaceCalc
- Geometry, not folklore. Every calculator applies standard projection maths to your real measurements, with the formulas published on the methodology page.
- Everything runs locally. No uploads, no accounts, no tracking of the numbers you enter.
- Built for actual rigs. Single screens, ultrawides, triples with bezel gaps, and per-game quirks documented in one place.
- Honest limits. Where a game hides its FOV behind an unknown slider scale, we say so instead of pretending precision.
Learn the geometry
Who runs this site
RaceCalc is an independent, sim-racer-run toolset. We built the calculators we wanted for our own rigs. Read the full story or check the methodology behind every formula.