175/70R14 vs 195/60R14: Tyre Size Comparison, Diameter Difference & Speedometer Effect

If you are choosing between 175/70R14 and 195/60R14, the first question is how far apart they really are. 195/60R14 is the shorter tyre: its diameter is 589.6 mm against 600.6 mm, -11.0 mm (-1.8%) smaller. The sidewall goes from 122.5 mm to 117.0 mm (-5.5 mm), the circumference from 1886.8 mm to 1852.3 mm, and the revs per mile from 852.9 to 868.8. The tables below lay all of that out, then work through the speedometer effect in each direction and the clearance checks that matter before either size goes on the car.

The short version: a -1.8% diameter difference is inside the commonly used plus-or-minus 3% guideline, which is the usual yardstick for keeping speedometer error small. But diameter is only the first check. The two sizes also differ in width by 20 mm and in rim size (14 inches against 14 inches), so a swap means different wheels as well unless the rims already match. Read the whole comparison before deciding — the clearance and load-index sections matter as much as the headline percentage.

This is a calculation, not a safety approval. Always check your vehicle's door-jamb placard, load index and speed rating, and confirm fitment with a tyre professional before fitting a different tyre size.

175/70R14 vs 195/60R14 side by side

Measurement 175/70R14 195/60R14 Difference
Overall diameter 600.6 mm (23.6 in) 589.6 mm (23.2 in) -11.0 mm (-1.8%)
Sidewall height 122.5 mm 117.0 mm -5.5 mm
Circumference 1886.8 mm 1852.3 mm -34.5 mm
Revolutions per mile 852.9 868.8 +15.9
Section width 175 mm 195 mm +20 mm
Rim diameter 14 in 14 in +0 in

Diameter difference between 175/70R14 and 195/60R14: -11.0 mm (-1.8%)

The diameter gap of -11.0 mm (-1.8%) is the number to carry away from this section. It is inside the plus-or-minus 3% guideline, and it shows up directly in the speedometer tables below. The circumference difference of -34.5 mm and the revs-per-mile difference of +15.9 are the same change expressed differently — the first is what the road sees, the second is what the car's sensors count. Neither is a safety judgement on its own; both are inputs to the fitment checks further down the page.

Speedometer error: 175/70R14 to 195/60R14 and back

Going from 175/70R14 to 195/60R14, the diameter grows by -1.8%, so the true speed is the indicated speed multiplied by 0.982. At 30 mph on the dial the car is really doing 29.5 mph; at 50 mph indicated it is 49.1 mph; at 70 mph indicated it is 68.7 mph. The speedometer therefore reads high after the change, which matters most at motorway speed, where even a small percentage is a real difference in miles per hour. Going the other way, from 195/60R14 back to 175/70R14, the error reverses exactly: the ratio becomes 1.019, so 70 mph indicated is really 71.3 mph.

Indicated speed Actual speed fitting 195/60R14 (from 175/70R14) Actual speed fitting 175/70R14 (from 195/60R14)
30 mph 29.5 mph 30.6 mph
50 mph 49.1 mph 50.9 mph
70 mph 68.7 mph 71.3 mph

Sidewall height and ride comfort: 175/70R14 vs 195/60R14

The sidewall is where the ride difference lives. 175/70R14 has 122.5 mm of sidewall and 195/60R14 has 117.0 mm, a change of -5.5 mm. Less sidewall generally means sharper steering response and less cushioning, so more of the road surface reaches the cabin. The aspect ratios tell the same story in percentage terms: 70% for 175/70R14 against 60% for 195/60R14. Sidewall height also affects vulnerability to kerb damage — a shorter sidewall leaves less rubber between the rim and the road.

Width, grip and fuel use: 175/70R14 vs 195/60R14

The width gap is 20 mm (175 mm against 195 mm). Going wider usually buys dry grip and a more planted feel, and it costs a little in rolling resistance and road noise. Remember that width also decides whether the tyre fits the rim: a 195 mm tyre needs a rim width within the range its maker approves, and a rim that suited 175/70R14 may not suit 195/60R14. That is a separate check from the diameter comparison, and it belongs on the list before anything is fitted.

Revolutions per mile and gearing: 175/70R14 vs 195/60R14

The revs-per-mile figures (852.9 for 175/70R14, 868.8 for 195/60R14) describe the gearing effect. 195/60R14 turns +15.9 fewer times per mile, so at any given road speed the engine turns slightly slower with 195/60R14 fitted — the gearing is effectively longer. That can make cruising a touch more relaxed and can trim fuel use slightly, but it also means slightly less acceleration from the same throttle opening, because each gear is effectively taller. The change is 1.8% either way, so the effect on everyday driving is subtle rather than transformative.

Will 195/60R14 clear after 175/70R14? What to check before fitting

Whether 195/60R14 physically fits is a question for your car, not for this table. The numbers say it is shorter by 11.0 mm and 20 mm wider, and those are the dimensions that decide clearance — but the actual gaps depend on your arches, suspension and steering geometry. Check at full lock both ways, check with the suspension compressed, and check with the car loaded. Check the placard for the load index and speed rating, and check the rim width for a 195 mm tyre. A tyre professional can confirm all of it in one visit, and that confirmation is the step that turns a comparison into a fitment.

Which size suits which priority: 175/70R14 or 195/60R14

The decision comes down to priorities. Comfort follows the sidewall (-5.5 mm here). Grip follows the width (+20 mm here). Instrument accuracy follows the diameter (-1.8% here). Gearing and cruising engine speed follow the revs-per-mile change (+15.9). None of those is large in this comparison, which is why the practical checks — clearance, load index, speed rating, rim width — deserve as much attention as the numbers. Get those right and the size choice becomes a matter of preference rather than a risk.

Related 175/70R14 vs 195/60R14 comparisons and tools

Frequently asked questions

What is the diameter difference between 175/70R14 and 195/60R14?

195/60R14 is -11.0 mm (-1.8%) smaller in diameter than 175/70R14: 589.6 mm against 600.6 mm. That is inside the commonly used plus-or-minus 3% guideline for keeping speedometer error small.

How much will my speedometer be out if I fit 195/60R14 instead of 175/70R14?

For 175/70r14 vs 195/60r14 tyre size comparison, the point is this: The error follows the diameter ratio, -1.8%. At an indicated 30 mph the true speed would be 29.5 mph, at 50 mph indicated it would be 49.1 mph, and at 70 mph indicated it would be 68.7 mph. The full table in both directions is in the speedometer section above.

Is 195/60R14 wider than 175/70R14, and does that matter?

Yes — 195/60R14 is 195 mm wide against 175 mm for 175/70R14, a difference of +20 mm. A wider tyre generally gives more dry grip and can increase rolling resistance and road noise slightly. Width also affects clearance, so check the arches and suspension at full lock.

Will 195/60R14 fit my car if 175/70R14 fits?

Not necessarily. 195/60R14 is shorter by 11.0 mm and 20 mm wider, and it needs a 14-inch rim. Check the wheel arches, suspension and steering lock at full lock in both directions, with the car loaded, and confirm the load index and speed rating against your door-jamb placard. A tyre professional can confirm fitment on your vehicle.

Which size is better, 175/70R14 or 195/60R14?

Neither is better in general — it depends on what you want. 195/60R14 has a -5.5 mm sidewall difference, a +20 mm width difference and a -1.8% diameter difference, so the trade-offs are comfort, grip and instrument accuracy respectively. If the diameter is within the plus-or-minus 3% guideline and the clearance check passes, the choice is a matter of preference; if not, resolve those two points first.