Automotive calculators
Decode tire size codes, convert engine displacement, calculate ground clearance, and measure every vehicle dimension in inches.
Popular vehicle calculators
Essential tools for tire selection and engine sizing.
Tire Size Calculator
Decode P-metric tire codes and convert to overall diameter in inches.
Engine Displacement
Convert engine CC to cubic inches and liters for any engine.
Wheel Rim Size
Calculate rim diameter, width, and offset in inches.
Lift Kit Calculator
Body and suspension lift sizing for trucks and SUVs.
Tires, wheels & suspension
Tire Size Calculator
Decode tire size codes and convert to overall diameter in inches
Wheel Rim Size Calculator
Calculate wheel rim diameter, width, and bolt pattern
Lift Kit Size Calculator
Calculate body and suspension lift in inches
Ground Clearance Calculator
Calculate vehicle ground clearance in inches
Engine & drivetrain
Towing & cargo
Quick reference: tire size codes
Reading a P-metric tire code
Example: P215/65R16
| Part | Meaning |
|---|---|
| P | Passenger car tire |
| 215 | Section width in mm |
| 65 | Aspect ratio (sidewall %) |
| R | Radial construction |
| 16 | Rim diameter in inches |
Common engine displacements
| CC / L | Cubic Inches |
|---|---|
| 1.0L / 1000cc | 61 in³ |
| 2.0L / 2000cc | 122 in³ |
| 3.5L / 3500cc | 214 in³ |
| 5.0L / 5000cc | 305 in³ |
| 6.2L / 6200cc | 378 in³ |
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