Semi truck tire size conversion chart & calculator

MICHELIN INFLATION CHARTS FOR RV USAGE ONLY

WHEEL DIAMETER 16″	PSI	35	40	45	50	55	60	65	70	75	80	MAXIMUM LOAD AND PRESSURE ON SIDEWALL
kPa	250	280	310	350	380	410	450	480	520	550
LT215/85R16 LRE XPS RIB	LBS SINGLE	1495	1640	1785	1940	2050	2180	2335	2430	2550	2680	S	2680 LBS AT 80 PSI
LBS DUAL	2720	2980	3250	3530	3730	3970	4300	4420	4640	4940	D	2470 LBS AT 80 PSI
KG SINGLE	695	745	810	880	930	990	1060	1100	1155	1215	S	1215 KG AT 550 kPa
KG DUAL	1260	1350	1475	1600	1690	1800	1950	2005	2105	2240	D	1120 KG AT 550 kPa
LT225/75R16 LRE XPS RIB	LBS SINGLE	1500	1650	1790	1940	2060	2190	2335	2440	2560	2680	S	2680 LBS AT 80 PSI
LBS DUAL	2730	3000	3260	3530	3750	3990	4300	4440	4660	4940	D	2470 LBS AT 80 PSI
KG SINGLE	700	750	813	880	935	995	1060	1108	1160	1215	S	1215 KG AT 550 kPa
KG DUAL	1270	1360	1480	1600	1700	1810	1950	2015	2115	2240	D	1120 KG AT 550 kPa
LT235/85R16 LRE XPS RIB	LBS SINGLE	1700	1870	2030	2205	2335	2485	2625	2765	2905	3042	S	3042 LBS AT 80 PSI
LBS DUAL	3090	3400	3690	4010	4250	4520	4760	5030	5290	5556	D	2778 LBS AT 80 PSI
KG SINGLE	790	850	920	1000	1060	1130	1190	1255	1320	1380	S	1380 KG AT 550 kPa
KG DUAL	1440	1545	1675	1820	1930	2050	2160	2280	2400	2520	D	1260 KG AT 550 kPa
LT245/75R16 LRE XPS RIB	LBS SINGLE	1700	1865	2030	2205	2335	2480	2625	2765	2900	3042	S	3042 LBS AT 80 PSI
LBS DUAL	3090	3390	3690	4010	4250	4510	4763	5030	5280	5556	D	2778 LBS AT 80 PSI
KG SINGLE	790	845	920	1000	1060	1125	1190	1255	1315	1380	S	1380 KG AT 550 kPa
KG DUAL	1440	1540	1675	1820	1930	2045	2160	2280	2395	2520	D	1260 KG AT 550 kPa

WHEEL DIAMETER 17.5″	PSI	85	90	95	100	105	110	115	120	125	MAXIMUM LOAD AND PRESSURE ON SIDEWALL
kPa	590	620	660	690	720	760	790	830	860
10R17.5 LRG XZA	LBS SINGLE	3860	4005	4150	4300	4470	4640	4805			S	4805 LBS AT 115 PSI
LBS DUAL	7280	7570	7860	8160	8470	8780	9080			D	4540 LBS AT 115 PSI
KG SINGLE	1750	1820	1890	1950	2030	2110	2180			S	2180 KG AT 790 kPa
KG DUAL	3300	3440	3580	3700	3840	3980	4120			D	2060 KG AT 790 kPa

WHEEL DIAMETER 19.5″	PSI	65	70	75	80	85	90	95	100	105	110	115	120	MAXIMUM LOAD AND PRESSURE ON SIDEWALL
kPa	450	480	520	550	590	620	660	690	720	760	790	830
8R19.5 LRF XZA	LBS SINGLE		2540	2680	2835	2955	3075	3195	3305	3415	3525			S	3525 LBS AT 110 PSI
LBS DUAL		4920	5140	5360	5570	5780	6000	6200	6400	6610			D	3305 LBS AT 110 PSI
KG SINGLE		1150	1220	1285	1340	1400	1450	1500	1550	1600			S	1600 KG AT 760 kPa
KG DUAL		2240	2340	2430	2520	2620	2720	2820	2920	3000			D	1500 KG AT 760 kPa
225/70R19.5 LRF XRV, XZE	LBS SINGLE	2755	2895	3040	3195	3315	3450	3640						S	3640 LBS AT 95 PSI
LBS DUAL	5200	5440	5720	6000	6230	6490	6830						D	3415 LBS AT 95 PSI
KG SINGLE	1250	1310	1380	1450	1500	1570	1650						S	1650 KG AT 660 kPa
KG DUAL	2360	2460	2600	2720	2820	2940	3100						D	1550 KG AT 660 kPa
225/70R19.5 LRG XZE	LBS SINGLE	2755	2895	3040	3195	3315	3450	3640	3715	3845	3970			S	3970 LBS AT 110 PSI
LBS DUAL	5200	5440	5720	6000	6230	6490	6830	6980	7230	7500			D	3750 LBS AT 110 PSI
KG SINGLE	1250	1310	1380	1450	1500	1570	1650	1690	1740	1800			S	1800 KG AT 760 kPa
KG DUAL	2360	2460	2600	2720	2820	2940	3100	3160	3280	3400			D	1700 KG AT 760 kPa
245/70R19.5 LRF XRV	LBS SINGLE				3640	3740	3890	4080						S	4080 LBS AT 95 PSI
LBS DUAL				6830	7030	7310	7720						D	3860 LBS AT 95 PSI
KG SINGLE				1650	1700	1770	1850						S	1850 LBS AT 660 kPa
KG DUAL				3100	3180	3320	3500						D	1750 LBS AT 660 kPa
245/70R19.5 LRG XZE	LBS SINGLE				3640	3740	3890	4080	4190	4335	4540			S	4540 LBS AT 110 PSI
LBS DUAL				6830	7030	7310	7720	7880	8150	8600			D	4300 LBS AT 110 PSI
KG SINGLE				1650	1700	1770	1850	1900	1970	2060			S	2060 KG AT 760 kPa
KG DUAL				3100	3180	3320	3500	3580	3700	3900			D	1950 KG AT 760 kPa
245/70R19.5 LRH XZE	LBS SINGLE			3390	3570	3750	3925	4100	4270	4440	4610	4775	4940	S	4940 LBS AT 120 PSI
LBS DUAL			6420	6760	7100	7430	7760	8080	8400	8720	9040	9350	D	4675 LBS AT 120 PSI
KG SINGLE			1540	1620	1700	1780	1860	1935	2015	2090	2165	2240	S	2240 KG AT 830 kPa
KG DUAL			2910	3065	3220	3370	3520	3665	3810	3955	4100	4240	D	2120 KG AT 830 kPa

WHEEL DIAMETER 22.5″	PSI	70	75	80	85	90	95	100	105	110	115	120	125	130	MAXIMUM LOAD AND PRESSURE ON SIDEWALL
kPa	480	520	550	590	620	660	690	720	760	790	830	850	900
9R22.5 LRG XZE	LBS SINGLE	3370	3560	3730	3890	4080	4235	4390	4540						S	4550 LBS AT 105 PSI
LBS DUAL	6540	6820	7100	7380	7720	8010	8300	8600						D	4300 LBS AT 105 PSI
KG SINGLE	1530	1615	1690	1760	1850	1920	1990	2060						S	2060 KG AT 720 kPa
KG DUAL	2960	3100	3220	3340	3500	3640	3780	3900						D	1950 KG AT 720 kPa
10R22.5 LRF XZE	LBS SINGLE	4080	4280	4480	4675	4850	5025	5205							S	5205 LBS AT 100 PSI
LBS DUAL	7720	8090	8460	8820	9170	9520	9880							D	4940 LBS AT 100 PSI
KG SINGLE	1850	1940	2030	2120	2200	2280	2360							S	2360 KG AT 690 kPa
KG DUAL	3500	3660	3820	4000	4160	4320	4480							D	2240 KG AT 690 kPa
10R22.5 LRG XZE	LBS SINGLE	4080	4280	4480	4685	4850	5025	5205	5360	5515	5675				S	5675 LBS AT 115 PSI
LBS DUAL	7720	8090	8460	8820	9170	9520	9880	10150	10420	10710				D	5355 LBS AT 115 PSI
KG SINGLE	1850	1940	22030	2120	2200	2280	2360	2430	2500	2575				S	2575 KG AT 790 kPa
KG DUAL	3500	3660	3820	4000	4160	4320	4480	4600	4720	4860				D	2430 KG AT 790 kPa
11R22.5 LRG XZA3, XZE2	LBS SINGLE	4530	4770	4990	5220	5510	5730	5950	6175						S	6175 LBS AT 105 PSI
LBS DUAL	8760	9160	9520	9900	10410	10830	11250	11680						D	5840 LBS AT 105 PSI
KG SINGLE	2050	2160	2260	2370	2500	2600	2700	2800						S	2800 KG AT 720 kPa
KG DUAL	3980	4160	4320	4500	4720	4920	5120	5300						D	2650 KG AT 720 kPa
11R22.5 LRH XZA3, XZE2	LBS SINGLE		4770	4990	5220	5510	5730	5950	6175	6320	6465	6610			S	6610 LBS AT 120 PSI
LBS DUAL		9160	9520	9900	10410	10830	11250	11680	11790	11900	12010			D	6005 LBS AT 120 PSI
KG SINGLE		2160	2260	2370	2500	2600	2700	2800	2870	2940	3000			S	3000 KG AT 830 kPa
KG DUAL		4160	4320	4500	4720	4920	5120	5300	5360	5420	5450			D	2725 KG AT 830 kPa
12R22.5 LRH XZE	LBS SINGLE		5200	5450	5690	6005	6205	6405	6610	6870	7130	7390			S	7390 LBS AT 120 PSI
LBS DUAL		9980	10380	10780	11350	11570	11790	12010	12530	13050	13560			D	6780 LBS AT 120 PSI
KG SINGLE		2360	2470	2580	2725	2820	2910	3000	3120	3240	3350			S	3350 KG AT 830 kPa
KG DUAL		4520	4700	4880	5150	5260	5360	5450	5680	5920	6150			D	3075 KG AT 830 kPa
235/80R22.5 LRG XRV, XZE	LBS SINGLE	3255	3440	3625	3805	3980	4160	4330	4505	4675					S	4675 LBS AT 110 PSI
LBS DUAL	6140	6490	6840	7180	7510	7840	8170	8500	8820					D	4410 LBS AT 110 PSI
KG SINGLE	1475	1560	1645	1725	1805	1885	1965	2045	2120					S	2120 KG AT 760 kPa
KG DUAL	2785	2945	3105	3255	3405	3555	3705	3855	4000					D	2000 KG AT 760 kPa
255/70R22.5 LRH   XZE %	LBS SINGLE			4190	4370	4550	4675	4895	5065	5205	5400	5510			S	5510 LBS AT 120 PSI
LBS DUAL			7940	8220	8550	8820	8910	9220	9350	9830	10140			D	5070 LBS AT 120 PSI
KG SINGLE			1900	1980	2060	2120	2220	2300	2360	2450	2500			S	2500 KG AT 830 kPa
KG DUAL			3600	3720	3880	4000	4040	4180	4240	4460	4600			D	2300 KG AT 830 kPa
255/80R22.5 LRG XRV, XZE	LBS SINGLE	3875	4070	4300	4440	4620	4805	4975	5150	5205					S	5205 LBS AT 110 PSI
LBS DUAL	7050	7410	7720	8080	8410	8820	9050	9370	9610					D	4805 LBS AT 110 PSI
KG SINGLE	1760	1850	1950	2010	2100	2180	2260	2340	2360					S	2360 KG AT 760 kPa
KG DUAL	3200	3360	3500	3660	3820	4000	4100	4260	4360					D	2180 KG AT 760 kPa
275/70R22.5 LRJ XZA2 ENERGY	LBS SINGLE				4940	5170	5400	5625	5850	6070	6290	6510	6730	6940	S	6940 LBS AT 130 PSI
LBS DUAL				9710	10160	10610	11050	11490	11930	12360	12790			D	6395 LBS AT 120 PSI
KG SINGLE				2250	2340	2460	2550	2640	2750	2840	2950	3040	3150	S	3150 KG AT 900 kPa
KG DUAL				4420	4600	4820	5000	5180	5400	5580	5800			D	2900 KG AT 830 kPa
275/80R22.5 LRG XZA3, XZE2	LBS SINGLE	4500	4725	4940	5155	5370	5510	5780	5980	6175					S	6175 LBS AT 110 PSI
LBS DUAL	8190	8600	9080	9380	9770	10140	10520	10880	11350					D	5675 LBS AT 110 PSI
KG SINGLE	2040	2140	2240	2340	2440	2500	2620	2710	2800					S	2800 KG AT 760 kPa
KG DUAL	3720	3900	4120	4260	4440	4600	4780	4940	5150					D	2575 KG AT 760 kPa

WHEEL DIAMETER 24.5″	PSI	70	75	80	85	90	95	100	105	110	115	120	MAXIMUM LOAD AND PRESSURE ON SIDEWALL
kPa	480	520	550	590	620	660	690	720	760	790	830
11R24.5 LRG XZA3, XZE2	LBS SINGLE	4820	5070	5310	5550	5840	6095	6350	6610				S	6610 LBS AT 105 PSI
LBS DUAL	9320	9740	10140	10520	11020	11350	11680	12010				D	6005 LBS AT 105 PSI
KG SINGLE	2190	2300	2410	2520	2650	2770	2890	3000				S	3000 KG AT 720 kPa
KG DUAL	4220	4420	4600	4780	5000	5160	5320	5450				D	2725 KG AT 720 kPa
11R24.5 LRH XZE2	LBS SINGLE		5070	5310	5550	5840	6095	6350	6610	6790	6970	7160	S	7160 LBS AT 120 PSI
LBS DUAL		9740	10140	10520	11020	11350	11680	12010	12410	12810	13220	D	6610 LBS AT 120 PSI
KG SINGLE		2300	2410	2520	2650	2770	2890	3000	3080	3160	3250	S	3250 KG AT 830 kPa
KG DUAL		4420	4600	4780	5000	5160	5320	5450	5640	5820	6000	D	3000 KG AT 830 kPa
275/80R24.5 LRG XZA3, XZE2	LBS SINGLE	4545	4770	4940	5210	5420	5675	5835	6040	6175			S	6175 LBS AT 110 PSI
LBS DUAL	8270	8680	9080	9480	9860	10410	10620	10990	11350			D	5675 LBS AT 110 PSI
KG SINGLE	2060	2160	2240	2360	2460	2575	2650	2740	2800			S	2800 KG AT 760 kPa
KG DUAL	3740	3940	4120	4300	4480	4720	4820	4980	5150			D	2575 KG AT 760 kPa

MICHELIN    COMMERCIAL LIGHT TRUCK TIRE REFERENCE CHART

Size	Sculp	Load Range (1)	Load Index	Speed Rating	Catalog Number	Tread Depth	Rim Range	Max. Tire Load And Pressure Single	Max. Tire Load And Pressure Dual
32nds	lbs.	psi	kg.	kPa	lbs.	psi	kg.	kPa
LT235/75R15	LTX M/S (2)	C	104/101	R	78868	13	6.0“ – 7.0“	1985	50	900	350	1820	50	825	350
LT215/85R16	LTX® A/T2	E	115/112	R	03321	17	5.5″ – 7.0″	2680	80	1215	550	2470	80	1120	550
LTX M/S (2)	E	115/112	R	57810	15	5.5“ – 7.0“	2680	80	1215	550	2470	80	1120	550
LTX® M/S2 (3)	E	115/112	R	02397	15	5.5″ – 7.0″	2680	80	1215	550	2470	80	1120	550
XPS RIB®	E	115/112	Q	39510	15	5.5″ – 7.0″	2680	80	1215	550	2470	80	1120	550
XPS TRACTION®	E	115/112	Q	35260	17	5.5″ – 7.0″	2680	80	1215	550	2470	80	1120	550
LT225/75R16	LTX® A/T2	E	115/112	R	33371	17	6.0″ – 7.0″	2680	80	1215	550	2470	80	1120	550
LTX® M/S	E	115/112	R	25516	15	6.0″ – 7.0″	2680	80	1215	550	2470	80	1120	550
XPS RIB®	E	115/112	Q	08404	14	6.0″ – 7.0″	2680	80	1215	550	2470	80	1120	550
LT235/85R16	LTX® A/T2	E	120/116	R	03287	17	6.0″ – 7.5″	3042	80	1380	550	2778	80	1260	550
LTX M/S (2)	E	120/116	R	07364	15	6.0“ – 7.0“	3042	80	1380	550	2778	80	1260	550
LTX® M/S2 (3)	E	120/116	R	27679	15	6.0″ – 7.0″	3042	80	1380	550	2778	80	1260	550
XPS RIB®	E	120/116	Q	13080	15	6.0″ – 7.0″	3042	80	1380	550	2778	80	1260	550
XPS TRACTION®	E	120/116	Q	36496	15	6.0″ – 7.0″	3042	80	1380	550	2778	80	1260	550
LT245/75R16	LTX® A/T2	E	120/116	R	38953	17	6.5″ – 8.0″	3042	80	1380	550	2778	80	1260	550
LTX® M/S	E	120/116	R	22606	15	6.5″ – 7.5″	3042	80	1380	550	2778	80	1260	550
XPS RIB®	E	120/116	Q	26848	14	6.5″ – 7.5″	3042	80	1380	550	2778	80	1260	550
LT265/75R16	LTX® A/T2	E	123/120	R	38691	17	7.0″ – 8.0″	3415	80	1550	550	3085	80	1400	550
LTX® M/S2	E	123/120	R	23388	14	7.0″ – 8.0″	3415	80	1550	550	3085	80	1400	550
LT245/70R17	LTX® A/S	E	119/116	R	90771	15	6.5″ – 7.5″	3000	80	1360	550	2755	80	1250	550
LTX® M/S2	E	119/116	R	38161	14	6.5″ – 8.0″	3000	80	1360	550	2755	80	1250	550
LT265/70R17	LTX® A/S	E	121/118	R	83116	15	7.0″ – 8.5″	3195	80	1450	550	2910	80	1320	550

NOTE: Never exceed the wheel manufacturer’s maximum air pressure limitation.

S = Single configuration, or 2 tires per axle. D = Dual configuration, or 4 tires per axle. Loads are indicated per axle.

WHEEL DIAMETER 15″	PSI	35	40	45	50	55	60	65	70	75	80	MAX LOAD & PRESSURE ON SIDEWALL
kPa	250	280	310	350	380	410	450	480	520	550
LT235/75R15 LRC LTX M/S	LBS SINGLE	3060	3360	3650	3970							S	1985 LBS AT 50 PSI
LBS DUAL	5560	6120	6640	7280							D	1820 LBS AT 50 PSI
KG SINGLE	1420	1525	1655	1800							S	900 KG AT 350 KPA
KG DUAL	2580	2775	3010	3300							D	900 KG AT 350 KPA

WHEEL DIAMETER 16″	PSI	35	40	45	50	55	60	65	70	75	80	MAX LOAD & PRESSURE ON SIDEWALL
kPa	250	280	310	350	380	410	450	480	520	550
LT215/85R16 LRE   LTX A/T2, LTX M/S, LTX M/S2, XPS RIB, XPS TRACTION	LBS SINGLE	2990	3280	3570	3880	4100	4360	4670	4860	5100	5360	S	2680 LBS AT 80 PSI
LBS DUAL	5440	5960	6500	7060	7460	7940	8600	8840	9280	9880	D	2470 LBS AT 80 PSI
KG SINGLE	1990	1488	1619	1760	1860	1978	2120	2205	2313	2430	S	1215 KG AT 550 KPA
KG DUAL	2520	2703	2948	3200	3384	3602	3900	4010	4209	4480	D	1120 KG AT 550 KPA
LT225/75R16 LRE   LTX A/T2, LTX M/S, XPS RIB	LBS SINGLE	3000	3300	3580	3880	4120	4380	4670	4880	5120	5360	S	2680 LBS AT 80 PSI
LBS DUAL	5460	6000	6520	7060	7500	7980	8600	8880	9320	9880	D	2470 LBS AT 80 PSI
KG SINGLE	1400	1500	1625	1760	1870	1990	2120	2215	2320	2430	S	1215 KG AT 550 KPA
KG DUAL	2540	2720	2960	3200	3400	3620	3900	4030	4230	4480	D	1120 KG AT 550 KPA
LT235/85R16 LRE   LTX A/T2, LTX M/S, LTX M/S2, XPS RIB, XPS TRACTION	LBS SINGLE	3400	3740	4060	4410	4670	4970	5246	5530	5810	6084	S	3042 LBS AT 80 PSI
LBS DUAL	6180	6800	7380	8024	8500	9040	9524	10060	10580	11112	D	2778 LBS AT 80 PSI
KG SINGLE	1580	1696	1842	2000	2118	2254	2380	2508	2635	2760	S	1380 KG AT 550 KPA
KG DUAL	2880	3084	3348	3640	3856	4100	4320	4563	4799	5040	D	1260 KG AT 550 KPA
LT245/75R16 LRE   LTX A/T2, LTX M/S, XPS RIB	LBS SINGLE	3400	3730	4060	4410	4670	4960	5250	5530	5800	6084	S	3042 LBS AT 80 PSI
LBS DUAL	6180	6780	7380	8024	8500	9020	9525	10060	10560	11112	D	2778 LBS AT 80 PSI
KG SINGLE	1580	1690	1840	2000	2120	2250	2380	2510	2630	2760	S	1380 KG AT 550 KPA
KG DUAL	2880	33075	3350	3640	3855	4090	4320	4560	4790	5040	D	1260 KG AT 550 KPA
LT265/75R16 LRE LTX A/T2, LTX M/S2	LBS SINGLE	3820	4200	4560	4940	5250	5580	6000	6210	6520	6830	S	3415 LBS AT 80 PSI
LBS DUAL	6960	7640	8300	9080	9560	10160	11020	11300	11860	12340	D	3085 LBS AT 80 PSI
KG SINGLE	1780	1905	2070	2240	2380	2530	2720	2815	2960	3100	S	1550 KG AT 550 KPA
KG DUAL	3240	3465	3765	4120	4340	4610	5000	5125	5380	5600	D	1400 KG AT 550 KPA

WHEEL DIAMETER 17″	PSI	35	40	45	50	55	60	65	70	75	80	MAX LOAD & PRESSURE ON SIDEWALL
kPa	250	280	310	350	380	410	450	480	520	550
LT245/70R17 LRE LTX A/S, LTX M/S2	LBS SINGLE	3380	3710	4020	4410	4630	4920	5200	5480	5750	6000	S	3000 LBS AT 80 PSI
LBS DUAL	6160	6760	7320	7940	8420	8960	9340	9980	10460	11020	D	2755 LBS AT 80 PSI
KG SINGLE	1570	1685	1825	2000	2100	2230	2360	2485	2610	2720	S	1360 KG AT 550 KPA
KG DUAL	2860	3065	3320	3600	3820	4065	4240	4525	4745	5000	D	1250 KG AT 550 KPA
LT265/70R17 LRE LTX A/S	LBS SINGLE	3780	4150	4510	4940	5190	5520	5820	6010	6200	6390	S	3195 LBS AT 80 PSI
LBS DUAL	6880	7560	8200	9080	9440	10040	10720	10940	11280	11640	D	2910 LBS AT 80 PSI
KG SINGLE	1760	1880	2044	2240	2360	2500	2640	2730	2800	2900	S	1450 KG AT 550 KPA
KG DUAL	3200	3440	3720	4120	4280	4560	4860	4960	5120	5280	D	1320 KG AT 550 KPA

Reference : https://www.michelintruck.com/assets/pdf/Truck_Tire_Data_Book_Jan2007.pdf