Overland Tools
Trail
PSI
Tire Pressure Calculator · Air Down Smart
01
Tire Size
Width (mm)
Aspect (%)
Rim (in)
e.g. a
285/75R17
→ Width: 285 · Aspect: 75 · Rim: 17
02
Vehicle Weight (lbs)
Total loaded weight
Light
Day run, no gear
Loaded
Camp gear, water
Heavy
Roof tent, trailer
03
Terrain Type
🛣️
Pavement
Full PSI
🪨
Dirt / Gravel
Drop 10–15%
⛰️
Rock Crawl
Drop 30–45%
🏜️
Sand / Mud
Drop 40–55%
04
Max Rated PSI
Tire max PSI (from sidewall)
Found on tire sidewall. Max load PSI — we'll never exceed this.
05
Temperature Adjustment
°F — Fahrenheit
°C — Celsius
📡 Fetch Current Temp at My Location
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Baseline Temp (°F)
Current Temp (°F)
Every
10°F rise = ~1 PSI increase
inside the tire. Enter the temp when you last checked / set your PSI vs. now.
◉
CALCULATE AIR-DOWN PSI
Recommended PSI
PAVEMENT
Front Axle
--
PSI
Rear Axle
--
PSI
🌡 Temperature Effect
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⚠ Results capped at your tire's max rated PSI. Check your vehicle's door placard for minimum highway PSI.
⚠ Trail Notes
RESET