The correct tire pressure for your trailer

Are you going out with the trailer? Then make sure that the trailer tires have the correct pressure. This improves driving comfort and road safety. In this blog we provide an overview of the correct pressure for each tire size. We also explain the best way to inflate a trailer tire.

Tire pressure table for trailers

The tire pressure for a trailer is often higher than that for a car, because the trailer has to carry more weight. The recommended pressure is stated on the side of the tire. The air pressure is expressed in bar or psi. Does your pump use a different unit than stated on the tape? Then use the following rule to convert to the recommended value: 1 Psi is 0.0689 bar. Conversely, 1 bar equals 14.5 psi. Always check the tire pressure when the tire is cold.

The correct pressure depends on the size of a tire. In the table below we have listed the recommended air pressures for different tire sizes.

Tire size	Bar	Psi
145 R10	2.7	39.2
155/70 R13	2.7	39.2
155/70 R12C	6.25	90.6
155/70 R12 XCX	6.5	94.3
155 R13	2.7	39.2
155/80 R13	2.7	39.2
165 R13 C	4.5	63
175/70 R13	2.7	39.2
175/80 R14	2.7	39.2
175/65 R14	2.7	39.2
175 R14	4.5	65.3
185/60 R12	6.2	89.9
185/60 R14	2.7	39.2
185/60 R14	2.7	39.2
185/65 R14	2.7	39.2
185/70 R13	2.7	39.2

Tire size	Bar	Psi
185/70 R14	2.7	39.2
185 R14	4.5	65.3
195/50 B10	6.2	89.9
195/55 R10	6.2	89.9
195/50 R13	6.2	89.9
195/60 R14	2.7	39.2
195/65 R14	2.7	39.2
195/60 R15	2.7	39.2
195/65 R15	3.0	43.5
195 R14	4.5	65.3
205/60 R15	2.7	39.2
255/55 B12	5.4	78.3
500-10C	2.5	36.3
18.5 X 8.5-8	3.4	49.3
20.5 X 8.0-10	6.2	89.9

Advantages of good tire pressure on a trailer

A trailer is mainly used to transport a heavy load. To be able to carry this weight, the tires must of course be hard enough. In addition, tire pressure has a major influence on the grip and handling of the trailer. If there is sufficient air pressure in the tire, the trailer will be easier to steer, drive more economically and respond better when braking. The correct pressure also ensures that the tires wear out less quickly and the chance of a blowout is lower. It is therefore important to check the air pressure of the trailer tires at least once a month. Then check the profile at the same time, so that you can drive safely.

More tips on inflating tires

On our blog page we also inform you about inflating car and caravan tires. You will also find more information about the difference between winter and summer tires here.