Tire Size Fitment
iOS app by Nikita Morozov. Utilities · Nikita Morozov
- Store rating
- 4.22 / 5
- Store rating count
- 99
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 4.1.1
- Listing last refreshed
- 2026-09-11
View the original store listing
Store description excerpt
Will the new wheels fit? Enter the tire and wheel you run now and the ones you are considering. The app draws both to scale, one over the other, from the same hub mounting face — so you can see how much further the new rim pokes out, how much closer it sits to the strut, and how much taller the whole wheel becomes. THE DRAWING Both wheels are drawn in cross-section on a shared axis, with the hub mounting face as the reference line. Pinch to zoom in up to 6x: the rim opens out into a real flange-and-drop-centre profile, a ruler appears along the top, and every dimension gets its own callout — rim width, section width, offset, backspace, and the gap between the two rims inside and out. SIXTEEN MEASUREMENTS Old and new side by side, each row with the difference: • Disk width, tire width, tire height • Overall diameter and circumference • Poke, inset, backspace • Speed error, plus what your speedometer will read at two speeds you pick • Ride height gain and arch gap loss • Suspension clearance, fender clearance, scrub radius VEHICLE CATALOG Don't know your factory sizes? Choose a make, a year and a model, and the app lists the wheel sets the car was sold with — staggered sets included — along with its spec sheet: generation, body, engine, power, bolt pattern, PCD, stud holes, centre bore and tire pressures. Tap a set to drop it straight into the comparison. UP TO SIX SETUPS Line up six wheels at once and swipe between them. Every setup holds a front and a rear axle, so staggered fitments stay staggered instead of being averaged away. BOTH NOTATIONS ISO metric (205/55 R16) and LT high flotation (33x12.50 R15). YOUR UNITS, YOUR LANGUAGE Millimetres or inches, km/h or mph. English, Русский, Italiano, Deutsch, Français, Čeština, Español, עברית. SHARE IT One tap turns the drawing and the full comparison table into a single image — send it to a friend, a forum thread or your fitter. WHAT IS FREE AND WHAT IS NOT The calculator, the scale drawing, all sixteen measurements, sharing, both notations, every unit and all eight languages are free, comparing two setups side by side. Full access is an optional monthly subscription. It adds the vehicle catalog, the rear axle as a fitment of its own, and up to six setups at once. It renews automatically until cancelled, and you can cancel any time in your Apple Account settings. No ads, no sign-up. The maths runs on your device; only the vehicle catalog needs a connection. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://wwf.kvarum.app/privacy
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