Automotive Engineering Reference
Master Tire Size Chart
Comprehensive dimensional specifications for standard automotive tire sizes categorized by vehicle segment.
✦
Compact & Economy Vehicles
7 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 155/65R13 | 20.9" (532 mm) | 155 mm (6.1") | 100.8 mm (4.0") | 65.8" | Inspect |
| 165/70R14 | 23.1" (587 mm) | 165 mm (6.5") | 115.5 mm (4.5") | 72.5" | Inspect |
| 175/65R14 | 23.0" (583 mm) | 175 mm (6.9") | 113.8 mm (4.5") | 72.1" | Inspect |
| 175/65R15 | 24.0" (609 mm) | 175 mm (6.9") | 113.8 mm (4.5") | 75.3" | Inspect |
| 185/60R15 | 23.7" (603 mm) | 185 mm (7.3") | 111.0 mm (4.4") | 74.6" | Inspect |
| 185/65R15 | 24.5" (622 mm) | 185 mm (7.3") | 120.3 mm (4.7") | 76.9" | Inspect |
| 205/50R15 | 23.1" (586 mm) | 205 mm (8.1") | 102.5 mm (4.0") | 72.5" | Inspect |
✦
Sedans & Standard Passenger Cars
12 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 195/55R16 | 24.4" (621 mm) | 195 mm (7.7") | 107.3 mm (4.2") | 76.8" | Inspect |
| 195/60R15 | 24.2" (615 mm) | 195 mm (7.7") | 117.0 mm (4.6") | 76.1" | Inspect |
| 195/65R15 | 25.0" (635 mm) | 195 mm (7.7") | 126.8 mm (5.0") | 78.5" | Inspect |
| 205/55R16 | 24.9" (632 mm) | 205 mm (8.1") | 112.8 mm (4.4") | 78.2" | Inspect |
| 205/60R16 | 25.7" (652 mm) | 205 mm (8.1") | 123.0 mm (4.8") | 80.7" | Inspect |
| 205/65R16 | 26.5" (673 mm) | 205 mm (8.1") | 133.3 mm (5.3") | 83.2" | Inspect |
| 215/55R16 | 25.3" (643 mm) | 215 mm (8.5") | 118.3 mm (4.7") | 79.5" | Inspect |
| 215/55R17 | 26.3" (668 mm) | 215 mm (8.5") | 118.3 mm (4.7") | 82.7" | Inspect |
| 215/60R16 | 26.2" (664 mm) | 215 mm (8.5") | 129.0 mm (5.1") | 82.2" | Inspect |
| 225/45R17 | 25.0" (634 mm) | 225 mm (8.9") | 101.3 mm (4.0") | 78.5" | Inspect |
| 225/50R17 | 25.9" (657 mm) | 225 mm (8.9") | 112.5 mm (4.4") | 81.2" | Inspect |
| 225/55R17 | 26.7" (679 mm) | 225 mm (8.9") | 123.8 mm (4.9") | 84.0" | Inspect |
✦
Sports & Performance Vehicles
27 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 205/45R17 | 24.3" (616 mm) | 205 mm (8.1") | 92.3 mm (3.6") | 76.2" | Inspect |
| 215/45R17 | 24.6" (625 mm) | 215 mm (8.5") | 96.8 mm (3.8") | 77.3" | Inspect |
| 225/40R18 | 25.1" (637 mm) | 225 mm (8.9") | 90.0 mm (3.5") | 78.8" | Inspect |
| 225/45R18 | 26.0" (660 mm) | 225 mm (8.9") | 101.3 mm (4.0") | 81.6" | Inspect |
| 235/35R19 | 25.5" (647 mm) | 235 mm (9.3") | 82.3 mm (3.2") | 80.0" | Inspect |
| 235/40R18 | 25.4" (645 mm) | 235 mm (9.3") | 94.0 mm (3.7") | 79.8" | Inspect |
| 235/40R19 | 26.4" (671 mm) | 235 mm (9.3") | 94.0 mm (3.7") | 82.9" | Inspect |
| 245/35R18 | 24.8" (629 mm) | 245 mm (9.7") | 85.8 mm (3.4") | 77.8" | Inspect |
| 245/35R19 | 25.8" (654 mm) | 245 mm (9.7") | 85.8 mm (3.4") | 80.9" | Inspect |
| 245/40R17 | 24.7" (628 mm) | 245 mm (9.7") | 98.0 mm (3.9") | 77.7" | Inspect |
| 245/40R18 | 25.7" (653 mm) | 245 mm (9.7") | 98.0 mm (3.9") | 80.8" | Inspect |
| 245/40R19 | 26.7" (679 mm) | 245 mm (9.7") | 98.0 mm (3.9") | 83.9" | Inspect |
| 245/45R18 | 26.7" (678 mm) | 245 mm (9.7") | 110.3 mm (4.3") | 83.8" | Inspect |
| 255/35R18 | 25.0" (636 mm) | 255 mm (10.0") | 89.3 mm (3.5") | 78.6" | Inspect |
| 255/35R19 | 26.0" (661 mm) | 255 mm (10.0") | 89.3 mm (3.5") | 81.8" | Inspect |
| 255/40R18 | 26.0" (661 mm) | 255 mm (10.0") | 102.0 mm (4.0") | 81.8" | Inspect |
| 255/40R20 | 28.0" (712 mm) | 255 mm (10.0") | 102.0 mm (4.0") | 88.1" | Inspect |
| 255/45R19 | 28.0" (712 mm) | 255 mm (10.0") | 114.8 mm (4.5") | 88.1" | Inspect |
| 265/35R20 | 27.3" (694 mm) | 265 mm (10.4") | 92.8 mm (3.6") | 85.8" | Inspect |
| 275/35R19 | 26.6" (675 mm) | 275 mm (10.8") | 96.3 mm (3.8") | 83.5" | Inspect |
| 275/35R20 | 27.6" (701 mm) | 275 mm (10.8") | 96.3 mm (3.8") | 86.6" | Inspect |
| 275/40R18 | 26.7" (677 mm) | 275 mm (10.8") | 110.0 mm (4.3") | 83.8" | Inspect |
| 275/40R20 | 28.7" (728 mm) | 275 mm (10.8") | 110.0 mm (4.3") | 90.0" | Inspect |
| 285/35R20 | 27.9" (708 mm) | 285 mm (11.2") | 99.8 mm (3.9") | 87.5" | Inspect |
| 285/35R22 | 29.9" (758 mm) | 285 mm (11.2") | 99.8 mm (3.9") | 93.8" | Inspect |
| 295/35R21 | 29.1" (740 mm) | 295 mm (11.6") | 103.3 mm (4.1") | 91.5" | Inspect |
| 305/30R20 | 27.2" (691 mm) | 305 mm (12.0") | 91.5 mm (3.6") | 85.5" | Inspect |
✦
Light Trucks & 4x4 Off-Road
4 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 245/75R16 | 30.5" (774 mm) | 245 mm (9.7") | 183.8 mm (7.2") | 95.7" | Inspect |
| 285/70R17 | 32.7" (831 mm) | 285 mm (11.2") | 199.5 mm (7.8") | 102.8" | Inspect |
| 305/35R24 | 32.4" (823 mm) | 305 mm (12.0") | 106.8 mm (4.2") | 101.8" | Inspect |
| 315/35R20 | 28.7" (729 mm) | 315 mm (12.4") | 110.3 mm (4.3") | 90.1" | Inspect |
✦
Full-Size SUVs
16 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 275/40R21 | 29.7" (753 mm) | 275 mm (10.8") | 110.0 mm (4.3") | 93.2" | Inspect |
| 275/45R20 | 29.7" (756 mm) | 275 mm (10.8") | 123.8 mm (4.9") | 93.4" | Inspect |
| 235/70R16 | 28.9" (735 mm) | 235 mm (9.3") | 164.5 mm (6.5") | 91.0" | Inspect |
| 245/65R17 | 29.5" (750 mm) | 245 mm (9.7") | 159.3 mm (6.3") | 92.8" | Inspect |
| 255/55R19 | 30.0" (763 mm) | 255 mm (10.0") | 140.3 mm (5.5") | 94.4" | Inspect |
| 265/60R18 | 30.5" (775 mm) | 265 mm (10.4") | 159.0 mm (6.3") | 95.9" | Inspect |
| 265/65R17 | 30.6" (776 mm) | 265 mm (10.4") | 172.3 mm (6.8") | 96.0" | Inspect |
| 265/65R18 | 31.6" (802 mm) | 265 mm (10.4") | 172.3 mm (6.8") | 99.2" | Inspect |
| 265/70R16 | 30.6" (777 mm) | 265 mm (10.4") | 185.5 mm (7.3") | 96.2" | Inspect |
| 265/70R17 | 31.6" (803 mm) | 265 mm (10.4") | 185.5 mm (7.3") | 99.3" | Inspect |
| 275/55R20 | 31.9" (811 mm) | 275 mm (10.8") | 151.3 mm (6.0") | 100.3" | Inspect |
| 275/60R20 | 33.0" (838 mm) | 275 mm (10.8") | 165.0 mm (6.5") | 103.7" | Inspect |
| 275/65R18 | 32.1" (815 mm) | 275 mm (10.8") | 178.8 mm (7.0") | 100.8" | Inspect |
| 275/70R16 | 31.2" (791 mm) | 275 mm (10.8") | 192.5 mm (7.6") | 97.9" | Inspect |
| 285/45R22 | 32.1" (815 mm) | 285 mm (11.2") | 128.3 mm (5.0") | 100.8" | Inspect |
| 285/65R17 | 31.6" (802 mm) | 285 mm (11.2") | 185.3 mm (7.3") | 99.2" | Inspect |
✦
Crossovers (CUV) & Compact SUVs
15 Sizes| Tire Size | Diameter (Ø) | Section Width | Sidewall Profile | Circumference | Actions |
|---|---|---|---|---|---|
| 215/65R16 | 27.0" (686 mm) | 215 mm (8.5") | 139.8 mm (5.5") | 84.8" | Inspect |
| 215/65R17 | 28.0" (711 mm) | 215 mm (8.5") | 139.8 mm (5.5") | 88.0" | Inspect |
| 225/55R18 | 27.7" (705 mm) | 225 mm (8.9") | 123.8 mm (4.9") | 87.2" | Inspect |
| 225/60R17 | 27.6" (702 mm) | 225 mm (8.9") | 135.0 mm (5.3") | 86.8" | Inspect |
| 225/60R18 | 28.6" (727 mm) | 225 mm (8.9") | 135.0 mm (5.3") | 89.9" | Inspect |
| 225/65R17 | 28.5" (724 mm) | 225 mm (8.9") | 146.3 mm (5.8") | 89.6" | Inspect |
| 235/55R18 | 28.2" (716 mm) | 235 mm (9.3") | 129.3 mm (5.1") | 88.5" | Inspect |
| 235/55R19 | 29.2" (741 mm) | 235 mm (9.3") | 129.3 mm (5.1") | 91.7" | Inspect |
| 235/60R18 | 29.1" (739 mm) | 235 mm (9.3") | 141.0 mm (5.5") | 91.4" | Inspect |
| 235/65R17 | 29.0" (737 mm) | 235 mm (9.3") | 152.8 mm (6.0") | 91.2" | Inspect |
| 245/45R19 | 27.7" (703 mm) | 245 mm (9.7") | 110.3 mm (4.3") | 87.0" | Inspect |
| 245/50R20 | 29.6" (753 mm) | 245 mm (9.7") | 122.5 mm (4.8") | 93.1" | Inspect |
| 245/60R18 | 29.6" (751 mm) | 245 mm (9.7") | 147.0 mm (5.8") | 92.9" | Inspect |
| 255/50R19 | 29.0" (738 mm) | 255 mm (10.0") | 127.5 mm (5.0") | 91.2" | Inspect |
| 255/55R18 | 29.0" (738 mm) | 255 mm (10.0") | 140.3 mm (5.5") | 91.2" | Inspect |
Automotive Intelligence Suite
Specialized Tire & Wheel Tools
Tire Size Calculator
Calculate comprehensive measurements and rolling specs for any individual tire.
Launch Tool
Tire Size Comparison
Side-by-side dimensional comparison between two tire setups with visual delta.
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Tire Diameter Calculator
Find overall diameter and ground clearance differences between profiles.
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Tire Circumference Calculator
Calculate rolling distance and revolutions per mile/km for odometer checks.
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Speedometer Calculator
Calculate speed reading variances caused by tire diameter changes across speeds.
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Tire Size Guide
Learn how to read tire codes, sidewall ratings, load indices, and aspect ratios.
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Automotive Fitment & Safety Advisory
Calculations presented on TireSizeChecker.com are nominal mathematical projections. Actual installed rolling dimensions fluctuate depending on rim width matching, tire manufacturing tolerances (TRA/ETRTO standards), pneumatic inflation pressure, dynamic speed expansion, and vehicle cornering loads.
Always verify mechanical suspension clearance, brake caliper clearance, wheel fender lip clearance, speedometer recalibration, and load/speed ratings with a certified tire technician before mounting non-OEM tire sizes.