Data sheet TS-295/55R20 · Size
295/55R20 in inches
A 295/55R20 measures 32.8 in overall diameter by the formula (833 mm). This page compares the nominal numbers to maker measurements and nearby sizes that fall within ±3%.
Fig. 1 — Cross-section
Table 1 — Nominal dimensions
| Item | in | mm |
|---|---|---|
| DOverall diameter | 32.78 | 833 |
| ASection width | 11.61 | 295 |
| BSidewall | 6.39 | 162.3 |
| CRim | 20 | 508.0 |
| Circumference | 103.0 | 2,615 |
| Revs per mile · km | 615 | 382 |
| Flotation size printed | 33X12.00R20LT | Mickey Thompson |
|---|---|---|
| Measuring rim | 9.5″ | Nitto LT |
| Approved rims | 8.5–10.5, 8.0–10.0, 8.0–10.5″ | 12 LT tires |
Table 2 — Measured range
32.76–33.20″overall diameter, 15 tires from 4 makers (math: 32.78″)
58–70 lbweight, 12 LT versions
13.7–20.0/32″new tread depth
3,415 lbmax load per tire, 12 LT versions, as published
12 LT · 3 Pversions in the makers’ tables we read
All 15 tires ↓Table 3
15 tires in 295/55R20, as published
One row per model and type, from each maker’s size table. LT first, then P-metric; sorted by diameter.
The math says 32.78″. 15 tires from 4 makers measure 32.76″–33.20″. Tallest here: Mickey Thompson Baja Boss A/T (all-terrain), 33.20″. Check the maker’s number before you buy for a tight fit.
| Tire | Type | Diameter | Width | Rims, in | Weight | Tread | Max load |
|---|---|---|---|---|---|---|---|
| Nitto Ridge Grapplernittotire.com · Oct 15, 2026 | LT · E 123/120Q | 32.76″ | 12.17″ | 8.5–10.5 | 62.3 lb | 16.4/32″ | 3,415 lb @ 80 psi |
| Nitto Recon Grappler A/Tnittotire.com · Oct 15, 2026 | LT · E 123/120S | 32.76″ | 12.17″ | 8.5–10.5 | 60.1 lb | 16.1/32″ | 3,415 lb @ 80 psi |
| Nitto Terra Grappler G3nittotire.com · Oct 15, 2026 | LT · E 123/120T | 32.76″ | 12.17″ | 8.5–10.5 | 57.9 lb | 16.1/32″ | 3,415 lb @ 80 psi |
| Toyo Open Country A/T IIItoyotires.com · Oct 15, 2026 | LT · E 123/120T | 32.80″ | 12.20″ | 8.5–10.5 | 58.0 lb | 16.6/32″ | 3,415 lb @ 80 psi |
| Toyo Open Country R/T Trailtoyotires.com · Oct 15, 2026 | LT · E 123/120Q | 32.80″ | 12.20″ | 8.5–10.5 | 60.0 lb | 16.6/32″ | 3,415 lb @ 80 psi |
| Nitto Trail Grappler M/Tnittotire.com · Oct 15, 2026 | LT · E 123/120Q | 32.91″ | 12.52″ | 8.5–10.5 | 70.0 lb | 19.4/32″ | 3,415 lb @ 80 psi |
| Kumho Road Venture MT71kumhotireusa.com · Oct 15, 2026 | LT · E 123/120Q | 33.00″ | 12.20″ | 8.0–10.0 | 70.4 lb | 20.0/32″ | 3,415 lb @ 80 psi |
| Toyo Open Country M/Ttoyotires.com · Oct 15, 2026 | LT · E 123/120P | 33.00″ | 12.20″ | 8.0–10.0 | 68.0 lb | 19.4/32″ | 3,415 lb @ 80 psi |
| Mickey Thompson Baja Legend EXPmickeythompsontires.com · Oct 15, 2026 | LT · E 123Q | 33.10″ | 11.70″ | 8.0–10.5 | 63.0 lb | 18.5/32″ | 3,415 lb @ 80 psi |
| Mickey Thompson Baja Legend MTZmickeythompsontires.com · Oct 15, 2026 | LT · E 123Q | 33.10″ | 12.30″ | 8.0–10.5 | 64.0 lb | 20.0/32″ | 3,415 lb @ 80 psi |
| Mickey Thompson Baja Boss M/Tmickeythompsontires.com · Oct 15, 2026 | LT · E 123Q | 33.10″ | 12.30″ | 8.0–10.5 | 68.0 lb | 20.0/32″ | 3,415 lb @ 80 psi |
| Mickey Thompson Baja Boss A/Tmickeythompsontires.com · Oct 15, 2026 | LT · E 123Q | 33.20″ | 12.00″ | 8.0–10.5 | 67.0 lb | 18.5/32″ | 3,415 lb @ 80 psi |
| Nitto Terra Grappler G3nittotire.com · Oct 15, 2026 | SL 116T | 32.76″ | 12.17″ | 8.0–10.5 | 49.8 lb | 13.7/32″ | 2,756 lb @ 44 psi |
| Toyo Open Country A/T IIItoyotires.com · Oct 15, 2026 | SL 116T | 32.80″ | 12.20″ | 8.0–10.5 | 49.0 lb | 13.7/32″ | 2,756 lb @ 44 psi |
| Toyo Open Country R/T Trailtoyotires.com · Oct 15, 2026 | SL 116T | 32.80″ | 12.20″ | 8.0–10.5 | 46.0 lb | 13.7/32″ | 2,756 lb @ 44 psi |
§ 1
Nominal dimensions
By the formula a 295/55R20 has a section width of 11.6 in (295 mm) and a sidewall height of 6.4 in (162 mm). The rim is 20 in (508 mm), and the nominal overall diameter is 32.8 in (833 mm).
The circumference is 103.0 in (2,615 mm). That yields 615 revolutions per mile (382 per km) by the standard size math. These are unloaded nominal numbers; real tires measure slightly differently.
§ 2
Maker measurements
Tire makers list 15 tires in 295/55R20 from 4 brands, with 12 LT versions and 3 P-metric or passenger versions. The makers' published overall diameters run from 32.76 in to 33.2 in against 32.78 in by the formula, a range of 0.0% to +1.3%.
Load ranges shown in maker tables include SL and E. Published new weights run from 46 lbs to 70.4 lbs. New tread depths range from 13.7/32 in to 20/32 in. Tire makers also publish approved rim widths and maximum loads on the sidewall per regulation.
- Nitto Ridge Grappler LT295/55R20: overall diameter 32.76 in; overall width inflated 12.17 in; weight 62.3 lbs; tread depth 16.4/32 in (Nitto).
- Toyo Open Country A/T III LT295/55R20: overall diameter 32.8 in; overall width inflated 12.2 in; weight 58 lbs; tread depth 16.6/32 in; Toyo lists 634 revs per mile (Toyo).
- Kumho Road Venture MT71 LT295/55R20: overall diameter 33.0 in; section width on measuring rim 12.2 in; weight 70.4 lbs; tread depth 20/32 in (Kumho).
§ 3
Nearby sizes
Sizes within ±3% of 295/55R20 on 19–21 in rims include 275/60R20 (+0.7%), 285/55R20 (−1.3%) and 305/55R20 (+1.3%), among others. The ±3% window is a tire-shop rule of thumb, not a law or vehicle maker specification.
Comparing 295/55R20 to 275/60R20 shows diameter +0.7% (+0.22 in, +6 mm). At an indicated 60 mph the true speed becomes 60.4 mph and revolutions per mile change 615 → 611. See the 275/60R20 page or use the speedometer calculator for other comparisons.
Fig. 2
295/55R20 and the sizes next to it
To scale, on one ground line. Diameter by the formula.
Table 4
Compare 295/55R20 with another size
Type any size: diameter, sidewall, speedometer and clearance change against this one.
Comparison
305/55R20 is 33.21″ tall, +1.32% against 295/55R20. At 60 mph on the dial you drive 60.8 mph.
| Item | 295/55R20 | 305/55R20 | Change |
|---|---|---|---|
| Overall diameter | 32.78″ | 33.21″ | +0.43″ +1.32% |
| Section width | 11.61″ | 12.01″ | +0.39″ |
| Sidewall | 6.39″ | 6.60″ | +0.22″ |
| Circumference | 103.0″ | 104.3″ | +1.4″ |
| Revs per mile | 615 | 607 | −8 |
| Axle height | 16.39″ | 16.60″ | +0.22″ |
When the odometer counts 1,000 miles, you have driven 1,013.2 miles.
Engine RPM at the same road speed: −1.3%. Gear ratio calculator
Speedometer
| Dial shows | True speed | Difference |
|---|---|---|
| 30 mph | 30.4 mph | +0.4 |
| 45 mph | 45.6 mph | +0.6 |
| 60 mph | 60.8 mph | +0.8 |
| 70 mph | 70.9 mph | +0.9 |
| 80 mph | 81.1 mph | +1.1 |
295/55R20305/55R20
Note 1
P-metric or LT in the same size
Nitto Terra Grappler G3 is published in both versions.
| Nitto Terra Grappler G3 | P · 116T | LT · E · 123/120T |
|---|---|---|
| Overall diameter | 32.76″ | 32.76″ |
| Max load | 2,756 lb @ 44 psi | 3,415 lb @ 80 psi |
| Weight | 49.8 lb | 57.9 lb |
| Tread depth | 13.7/32″ | 16.1/32″ |
| Approved rims | 8.0–10.5″ | 8.5–10.5″ |
Source: Nitto size table, checked Oct 15, 2026. On trucks and SUVs, the load ratings of the tires on an axle must add up to at least the axle’s GAWR on the certification label (49 CFR 571.110).
Vehicles on 295/55R20: not listed yet. We add a vehicle here only from its maker’s own spec sheet for that year and trim.
The size your vehicle left the factory on is printed on the tire and loading placard on the driver’s door jamb (49 CFR 571.110). Pressure and load: that placard too.
Table 5
Within 3% of 295/55R20
Same rim or ±1″, diameter within 3%. A shop rule of thumb, not a law.
| Size | Diameter | Width | vs 295/55R20 | At 60 mph | Clearance |
|---|---|---|---|---|---|
| 275/60R20 | 32.99″ | 10.8″ | +0.7% | 60.4 | +0.11″ |
| 33x11.50R20 | 33.00″ | 11.5″ | +0.7% | 60.4 | +0.11″ |
| 33x12.50R20 | 33.00″ | 12.5″ | +0.7% | 60.4 | +0.11″ |
| 265/60R20 | 32.52″ | 10.4″ | −0.8% | 59.5 | −0.13″ |
| 285/55R20 | 32.34″ | 11.2″ | −1.3% | 59.2 | −0.22″ |
| 305/55R20 | 33.21″ | 12.0″ | +1.3% | 60.8 | +0.22″ |
| 285/60R20 | 33.46″ | 11.2″ | +2.1% | 61.3 | +0.34″ |
| 305/50R20 | 32.01″ | 12.0″ | −2.3% | 58.6 | −0.38″ |
| 275/55R20 | 31.91″ | 10.8″ | −2.6% | 58.4 | −0.43″ |
| 275/50R21 | 31.83″ | 10.8″ | −2.9% | 58.3 | −0.47″ |
Q&A
Common questions
How many revolutions per mile does 295/55R20 make?
By the formula 295/55R20 makes 615 revolutions per mile (382 per km).
How close are maker measurements to the nominal size?
Makers list diameters from 32.76 in to 33.2 in against 32.78 in by the formula, a spread of 0.0% to +1.3% in published measurements.
What load and load-range information is on the tire?
49 CFR 571.139 (FMVSS No. 139) requires the sidewall to show the maximum load rating and, for LT tires, the load range letter; maker tables also list maximum load and approved rims.
Where do I find the vehicle maker’s recommended pressure?
49 CFR 571.110 (FMVSS No. 110) requires the tire and loading placard on the driver's door jamb; see that placard for the vehicle maker’s recommended cold inflation pressures.
Notes
Method and sources
Each number and rule comes from a source with the date it was checked.
- Sidewall = width × aspect ratio ÷ 100
- Diameter = rim × 25.4 + 2 × sidewall (mm)
- Revs per mile = 63,360 ÷ (π × diameter, in)
- True speed = dial × new diameter ÷ old diameter
- Clearance change = half the diameter change
Numbers are nominal: the tire unloaded, on its measuring rim. Revs per mile published by makers run higher than the formula. “Within 3%” is a rule of thumb tire shops use, not a law. Tire pressure: the placard on your door jamb.
- Nitto: size table (nittotire.com)checked Oct 15, 2026
- Toyo: size table (toyotires.com)checked Oct 15, 2026
- Kumho: size table (kumhotireusa.com)checked Oct 15, 2026
- Mickey Thompson: size table (mickeythompsontires.com)checked Oct 15, 2026
- Nitto: size table (nittotire.com)checked Oct 15, 2026
- Nitto: size table (nittotire.com)checked Oct 15, 2026
- Toyo: size table (toyotires.com)checked Oct 15, 2026
- Nitto: size table (nittotire.com)checked Oct 15, 2026
- Toyo: size table (toyotires.com)checked Oct 15, 2026
- Mickey Thompson: size table (mickeythompsontires.com)checked Oct 15, 2026
- 49 CFR 571.139 (FMVSS No. 139), S5.5(d)ecfr.gov · checked Oct 15, 2026
- 49 CFR 571.110 (FMVSS No. 110), S4.3ecfr.gov · checked Oct 15, 2026
Related
Calculators and size classes
- Tire size calculatorTwo sizes: diameter, sidewall, revs and speedometer.
- Compare up to 4 sizesUp to four sizes side by side, drawn to scale.
- Metric ↔ inchesMetric to inches, and 33x12.50R20 to metric.
- Speedometer errorTrue speed after a size change.
- Gear ratio and RPMEngine RPM and the ratio to regear to.
- Wheel offset and pokeBackspacing, poke and inner clearance.
- DOT date codeHow old a tire is, from the DOT number.
- Load index chartLoad index in pounds and kilograms.
- Bolt patternMeasure it, convert inches to mm.
- Rim size and tire fitWhat 17x8 ET35 means, which sizes go on it.
- What fits my carStart from the placard on the door.
- Tire size chartCommon sizes in inches, by rim.