Tire Calculator

Tire Calculator

Car / SUV / Van / Light Truck Tire Calculator (P-metric) SIX EASY STEPS! ( For calculation purposes P205/65R15, LT205/65-15 and 205/65R15 are the same. )
Manufacturer's Suggested Tire Size * 1 Select the tire Width in MM (Inches) 145mm ( 5.7")155mm ( 6.1")165mm ( 6.5")175mm ( 6.9")185mm ( 7.3")195mm ( 7.7")205mm ( 8.1")215mm ( 8.5")225mm ( 8.9")235mm ( 9.3")245mm ( 9.6")255mm (10.0")265mm (10.4")275mm (10.8")285mm (11.2")295mm (11.6")305mm (12.0")315mm (12.4")325mm (12.8")335mm (13.2")345mm (13.6")355mm (14.0") 2 Select the Aspect Ratio (tire height/width) 202530354045505560657075808590 3 Select the Rim Diameter in inches 12"13"14"15"16"16.5"17"18"19"20"21"22"23"24"25"26" CALCULATED: Overall Wheel diameter in Inches Wheel Circumference in Inches Wheel revolutions per mile Wheel revolutions per second @ 65MPH	ALTERNATE or Desired Tire Size * 4 Select new tire Width in MM (Inches) 145mm ( 5.7")155mm ( 6.1")165mm ( 6.5")175mm ( 6.9")185mm ( 7.3")195mm ( 7.7")205mm ( 8.1")215mm ( 8.5")225mm ( 8.9")235mm ( 9.3")245mm ( 9.6")255mm (10.0")265mm (10.4")275mm (10.8")285mm (11.2")295mm (11.6")305mm (12.0")315mm (12.4")325mm (12.8")335mm (13.2")345mm (13.6")355mm (14.0") 5 Select new tire Aspect Ratio (tire height/width) 202530354045505560657075808590 6 Select new Rim Diameter in inches 12"13"14"15"16"16.5"17"18"19"20"21"22"23"24"25"26" CALCULATED: Overall Wheel diameter in Inches Wheel Circumference in Inches Wheel revolutions per mile Wheel revolutions per second @ 65MPH
NOTE: Changing the tire diameter CHANGES the SPEEDOMETER accuracy! This ALTERNATE tire size will cause the 'Actual Vehicle Speed' to be mph, when the speedometer reads exactly 65mph. Or, when the 'Actual Vehicle Speed' is 65mph the speedometer will now read Also, the ground clearance of the vehicle will change by inches.

Car / SUV / Van / Light Truck Tire Calculator (P-metric) SIX EASY STEPS! ( For calculation purposes P205/65R15, LT205/65-15 and 205/65R15 are the same. )
Manufacturer's Suggested Tire Size * 1 Select the tire Width in MM (Inches) 145mm ( 5.7")155mm ( 6.1")165mm ( 6.5")175mm ( 6.9")185mm ( 7.3")195mm ( 7.7")205mm ( 8.1")215mm ( 8.5")225mm ( 8.9")235mm ( 9.3")245mm ( 9.6")255mm (10.0")265mm (10.4")275mm (10.8")285mm (11.2")295mm (11.6")305mm (12.0")315mm (12.4")325mm (12.8")335mm (13.2")345mm (13.6")355mm (14.0") 2 Select the Aspect Ratio (tire height/width) 202530354045505560657075808590 3 Select the Rim Diameter in inches 12"13"14"15"16"16.5"17"18"19"20"21"22"23"24"25"26" CALCULATED: Overall Wheel diameter in Inches Wheel Circumference in Inches Wheel revolutions per mile Wheel revolutions per second @ 65MPH	ALTERNATE or Desired Tire Size * 4 Select new tire Width in MM (Inches) 145mm ( 5.7")155mm ( 6.1")165mm ( 6.5")175mm ( 6.9")185mm ( 7.3")195mm ( 7.7")205mm ( 8.1")215mm ( 8.5")225mm ( 8.9")235mm ( 9.3")245mm ( 9.6")255mm (10.0")265mm (10.4")275mm (10.8")285mm (11.2")295mm (11.6")305mm (12.0")315mm (12.4")325mm (12.8")335mm (13.2")345mm (13.6")355mm (14.0") 5 Select new tire Aspect Ratio (tire height/width) 202530354045505560657075808590 6 Select new Rim Diameter in inches 12"13"14"15"16"16.5"17"18"19"20"21"22"23"24"25"26" CALCULATED: Overall Wheel diameter in Inches Wheel Circumference in Inches Wheel revolutions per mile Wheel revolutions per second @ 65MPH
NOTE: Changing the tire diameter CHANGES the SPEEDOMETER accuracy! This ALTERNATE tire size will cause the 'Actual Vehicle Speed' to be mph, when the speedometer reads exactly 65mph. Or, when the 'Actual Vehicle Speed' is 65mph the speedometer will now read Also, the ground clearance of the vehicle will change by inches.

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