315/40R21 in Inches
315/40R21 tire size conversion to inches with detailed visualization of tire height, width, diameter, rim size and more.
What is 315/40R21 in inches?
When we convert 315/40R21 to inches, it is equivalent to 30.9x12.4R21. Let us break down the tire size dimensions for better understanding. 12.4 inches or 315 mm stand for section width, or width of the tire tread. 30.9 inches or 785 mm represent the overall diameter of the tire, or tire height. 21 inches is the rim diameter, or the diameter of the wheel the tire can be mounted on.
| Metric | Inches | |
|---|---|---|
| Overall Diameter | 785 mm | 30.9" |
| Tread Width | 315 mm | 12.4" |
| Rim Diameter | 533 mm | 21" |
| Sidewall Height | 126 mm | 5" |
| Circumference | 2465 mm | 97" |
| Revolutions | 406 per km | 653 per mile |
| Best Prices on 315/40R21 Tires | |
|---|---|
 |
|
 |
|
 from $327.50 |
|
 from $407.91 |
|
 from $369.99 |
|
What is 315/40R21 tire width?
315/40R21 tire has a width of 12.4 inches or 315 mm that reflects the measurement of tire's width from its inner sidewall to its outer sidewall at the widest point (excluding decorations, protective ribs or raised letters). Tire width is also called tread width, section width or cross section width. Tire width should be measured without any load placed upon the tire after it has been properly inflated and mounted on its industry assigned measuring rim.
What is 315/40R21 tire height?
315/40R21 tire has an overall diameter of 30.9 inches or 785 mm that represents the outer diameter of the tire or tire height.
What is 315/40R21 tire sidewall height?
315/40R21 tire has a sidewall height of 5 inches or 126 mm which is the measurement of tire sidewall from the wheel rim to the top of tire tread. Tire sidewall height or "profile" depends on aspect ratio - lower aspect ratio means lower tire profile.
What is 315/40R21 rim diameter?
Rim or wheel diameter is generally measured in inches, representing the size of the wheel the tire can be mounted on. 315/40R21 tire can be mounted on 21 inch wheels.
What is 315/40R21 tire circumference?
315/40R21 tire has a circumference of 97 inches or 2465 mm that represents the outer perimeter of the tire.
How many revolutions 315/40R21 tire makes?
Tire revolutions indicate the number of times a tire revolves while it covers the distance of a mile or a kilometer. 315/40R21 tire completes 653 revolutions per mile or 406 revolutions per kilometer.
More 21" Tire Conversions
Select tire size to see its specs and dimensions.
- 245/35R21 = 27.8x9.6R21
- 245/40R21 = 28.7x9.6R21
- 245/45R21 = 29.6x9.6R21
- 255/35R21 = 28x10R21
- 255/40R21 = 29x10R21
- 255/50R21 = 31.1x10R21
- 265/35R21 = 28.3x10.4R21
- 265/40R21 = 29.3x10.4R21
- 265/45R21 = 30.4x10.4R21
- 275/30R21 = 27.5x10.8R21
- 275/35R21 = 28.5x10.8R21
- 275/40R21 = 29.6x10.8R21
- 275/45R21 = 30.7x10.8R21
- 275/50R21 = 31.9x10.8R21
- 275/55R21 = 32.9x10.8R21
- 285/35R21 = 28.9x11.2R21
- 285/40R21 = 30x11.2R21
- 285/45R21 = 31.1x11.2R21
- 295/35R21 = 29.1x11.6R21
- 295/40R21 = 30.3x11.6R21
- HL245/35R21 = 27.8x9.6R21
- P265/45R21 = 30.4x10.4R21
- 285/30R21 = 27.8x11.2R21
- 295/30R21 = 28x11.6R21
- 305/30R21 = 28.2x12R21
- 305/35R21 = 29.4x12R21
- 315/30R21 = 28.5x12.4R21
- 315/35R21 = 29.6x12.4R21
- 315/40R21 = 30.9x12.4R21
- 315/45R21 = 32.2x12.4R21
- 325/30R21 = 28.7x12.8R21
- 325/40R21 = 31.2x12.8R21
- 355/25R21 = 28x14R21
- 235/35R21 = 27.4x9.3R21
- 235/45R21 = 29.3x9.3R21
- 245/30R21 = 26.8x9.6R21
- 255/30R21 = 27x10R21
- 275/25R21 = 26.4x10.8R21
- 295/25R21 = 26.8x11.6R21
- 305/25R21 = 27x12R21
- 325/25R21 = 27.4x12.8R21
- P245/35R21 = 27.8x9.6R21
- P245/45R21 = 29.6x9.6R21
- P265/35R21 = 28.3x10.4R21
- P275/30R21 = 27.5x10.8R21
- P275/35R21 = 28.5x10.8R21
- P295/40R21 = 30.3x11.6R21
- P315/35R21 = 29.6x12.4R21
- 265/30R21 = 27.3x10.4R21
- P255/45R21 = 30x10R21
- 235/30R21 = 26.6x9.3R21
- 255/45R21 = 30x10R21
- 375/20R21 = 26.9x14.8R21
- HL265/35R21 = 28.3x10.4R21