235/70R16 in Inches: Dimensions and Alternatives
Quick answer
Nominal geometry235/70R16 · nominal size-code geometry
- Overall diameter
- 28.95in
- Section width
- 9.25in
- Sidewall height
- 6.48in
Calculated from size markings. Not measured rolling dimensions or vehicle fitment approval.
Published
235/70R16 is a proportion commonly found on older SUVs and utility vehicles; equipment varies by vehicle version and market. 235/70R16 is useful in utility vehicle, crossover and older SUV tire discussions. Its relatively tall sidewall surrounds a sixteen inch wheel, so converting the whole size is more informative than comparing wheel diameters alone. The neighboring rows explore both a narrower taller ratio and a wider equal ratio.
Calculated tire dimensions and changes from the original
The first row, 235/70R16, is the original reference. All measurements are derived from the tire geometry engine. Percentages and theoretical speed values keep that same original throughout; rounding is for display only.
| Tire size | Width (mm) | Width (in) | Sidewall (mm) | Sidewall (in) | Wheel (mm) | Wheel (in) | Diameter (mm) | Diameter (in) | Circumference (mm) | Circumference (in) | Revolutions / mile | Revolutions / km | Diameter change (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 235/70R16 | 235 | 9.25 | 164.5 | 6.48 | 406.4 | 16 | 735.4 | 28.95 | 2310.3 | 90.96 | 696.6 | 432.8 | 0 |
| 225/75R16 | 225 | 8.86 | 168.8 | 6.64 | 406.4 | 16 | 743.9 | 29.29 | 2337 | 92.01 | 688.6 | 427.9 | 1.16 |
| 245/70R16 | 245 | 9.65 | 171.5 | 6.75 | 406.4 | 16 | 749.4 | 29.5 | 2354.3 | 92.69 | 683.6 | 424.8 | 1.9 |
Nominal size-code geometry. Reference: 235/70R16. Display rounding only; not fitment approval.
- Tire size
- 235/70R16
- Width (mm)
- 235
- Width (in)
- 9.25
- Sidewall (mm)
- 164.5
- Sidewall (in)
- 6.48
- Wheel (mm)
- 406.4
- Wheel (in)
- 16
- Diameter (mm)
- 735.4
- Diameter (in)
- 28.95
- Circumference (mm)
- 2310.3
- Circumference (in)
- 90.96
- Revolutions / mile
- 696.6
- Revolutions / km
- 432.8
- Diameter change (%)
- 0
- Tire size
- 225/75R16
- Width (mm)
- 225
- Width (in)
- 8.86
- Sidewall (mm)
- 168.8
- Sidewall (in)
- 6.64
- Wheel (mm)
- 406.4
- Wheel (in)
- 16
- Diameter (mm)
- 743.9
- Diameter (in)
- 29.29
- Circumference (mm)
- 2337
- Circumference (in)
- 92.01
- Revolutions / mile
- 688.6
- Revolutions / km
- 427.9
- Diameter change (%)
- 1.16
- Tire size
- 245/70R16
- Width (mm)
- 245
- Width (in)
- 9.65
- Sidewall (mm)
- 171.5
- Sidewall (in)
- 6.75
- Wheel (mm)
- 406.4
- Wheel (in)
- 16
- Diameter (mm)
- 749.4
- Diameter (in)
- 29.5
- Circumference (mm)
- 2354.3
- Circumference (in)
- 92.69
- Revolutions / mile
- 683.6
- Revolutions / km
- 424.8
- Diameter change (%)
- 1.9
Sixteen inch utility tires and tall crossover proportions
For a utility vehicle, overall diameter and section width answer different questions. Diameter helps describe the ideal radius and circumference. Width describes a lateral dimension that may matter near suspension components or wheel arches. Neither tells you the available space on the vehicle, and one should not be used as a substitute for the other.
The narrower 225/75R16 increases the ratio while the wider 245/70R16 holds it constant. This creates two useful contrasts with the reference. The first may preserve height through opposing changes; the second makes the wider tire taller as well. Calculate both instead of treating every nearby utility tire as part of one interchangeable height class.
Dimensions behind this particular shape
The wheel inside 235/70R16 measures 16 inches at the bead seat, or 406.4 mm. Above and below it sit nominal 164.50 mm sidewalls, calculated as 70% of the 235 mm section. Adding those two heights produces 735.40 mm (28.95 inches) overall. The tire therefore stands 12.95 inches taller than the wheel itself; calling it a 16 inch tall tire would leave out all of that rubber height.
For a utility vehicle on sixteen inch wheels, 225/75R16 narrows the section and increases the ratio, resulting in 168.75 mm sidewalls and 743.90 mm overall height. The 245/70R16 example retains the reference ratio on a wider section, so it reaches 171.50 mm per side and 749.40 mm in diameter. Original 235/70R16 is 735.40 mm tall. This pair of neighbors is useful because similar height can come from different section and ratio choices. Keep the actual product's measuring rim data when evaluating lateral room, especially if the original assembly already sits close to bodywork at steering lock.
Research the actual wheel and tire
When checking an existing set, read all four markings rather than assuming they match. A different spare or an earlier partial replacement can complicate the vehicle's actual configuration. This page does not decide whether mixing is permitted, especially where the vehicle has specific drivetrain requirements. Keep the complete arrangement and the vehicle instructions with the size comparison before considering a candidate.
Frequently asked questions
Will a wider sixteen inch utility tire also be taller?
With 235/70R16 as the reference, holding the seventy ratio while widening the section also raises the sidewall. That is relevant to older SUV and utility vehicle searches where the request may be phrased as just a little wider. Read the neighboring rows for the actual height rather than grouping every R16 tire together. The resulting radius change is geometric, and any lateral shift depends on the wheel and product dimensions. A suspension or body clearance question needs that installed information as well as the nominal circle.
Which distance definition accompanies the revolution count for 235/70R16?
The nominal circle covers 90.96 inches per revolution, giving 696.59 turns over a mile. These figures derive from 735.40 mm of outside diameter before rounding. A manufacturer's rolling figure may use specified operating conditions, so keep that product information distinct from the size code calculation instead of mixing the two definitions in one comparison.
What should a clearance check include on an older utility vehicle?
Identify the wheel width and offset and obtain the exact candidate's published section on its measuring rim. Then assess the assembly through the relevant steering and suspension movement. The seventy series conversion can describe radius and width changes, but it does not supply the installed position needed to locate possible body or suspension contact.
Continue your comparison
These are nominal geometric calculations, not vehicle fitment approval. Check the vehicle manual and exact tire and wheel specifications, including load and speed ratings, approved rim width and clearance; consult the manual for any diameter change exceeding 3%.
Reference tables: Load index chart and Speed rating chart.