Free tool
Tire pressure calculator
Set your cold tire pressure to the load you're actually carrying — front and rear — so you tow and haul on the right pressure instead of guessing.
1,500 lb per tire · 47% of max load
Lightly loaded — you may air down toward this for a softer ride, but never below your door-placard pressure.
1,750 lb per tire · 55% of max load
Lightly loaded — you may air down toward this for a softer ride, but never below your door-placard pressure.
A load-inflation estimate to set cold pressure — confirm against your tire maker's official load/inflation table, never exceed the max pressure stamped on the sidewall, and never go below your door-placard pressure. Set pressure cold.
Pressure, load & temperature
Door placard = your minimum
The number on the door-jamb sticker is the maker's recommended cold pressure for the original tires at full load. Don't run below it.
Max sidewall = your ceiling
The "Max Press" stamped on the tire is the most you should ever run cold — it pairs with the tire's max load rating.
Always set it cold
Check and set before driving or after 3+ hours parked, out of direct sun. Driving and heat raise pressure normally.
~1 psi per 10°F
Pressure drifts about a psi for every 10°F change in temperature — recheck when the seasons turn, especially in fall.
Tire pressure — frequently asked
What tire pressure should I run for my load?
Set it to the load, not a single number. The load-inflation method scales pressure with weight: pressure ≈ the tire's max pressure × (the weight on that tire ÷ the tire's max load). Weigh each axle loaded the way you drive, divide by the tires on that axle, and inflate (cold) to the figure above — never below your door-placard pressure and never above the max stamped on the sidewall.
Should front and rear tire pressure be different?
On a loaded truck, usually yes. A loaded bed and a trailer's tongue weight pile onto the rear axle, so the rear tires carry more and need more pressure than the front. Weigh both axles and set each to its own number — that's why this tool splits them.
Where do I find my tire's max load and max pressure?
They're stamped on the tire sidewall — look for "Max Load 3195 LBS at 80 PSI Cold" (figures vary by tire). The door-jamb placard shows the manufacturer's recommended cold pressure for the original tires at max vehicle load; treat that as your minimum.
Cold or hot — when do I set tire pressure?
Always set it cold — before driving or at least three hours parked, and not in direct sun. Pressure rises about 1 psi for every 10°F as the tire heats up and with the weather, so a tire that reads 65 psi cold may show 70+ after a highway run. Don't bleed off that hot pressure; it's normal.
Do I need more pressure with bigger aftermarket tires?
Match load capacity, not pressure. A larger or higher-load-range tire carries the same weight at a lower pressure than the original, so copying the door-placard number can over-inflate it. Use the load-inflation method here with the new tire's own max load and pressure, and confirm against the tire maker's load/inflation table.
