Tire Size 145/80r12 in inches

The tire size 145/80r12, which is equivalent to 21.1×5.7R12, has a diameter of 21.1 inches (536.8 mm), a section width of 5.7 inches (145 mm), a wheel diameter of 12 inches (305 mm), and is approved to be mounted on 4.0-5.5 inches wide wheels. It provides an optimum blend of comfort and stability, suitable for various compact and sub-compact vehicles.

145/80r12 in inches

Feature	Metric (mm)	Inches
Tire Diameter	536.8	21.1
Section Width	145	5.7
Rim Height	305	12
Sidewall Height	116	4.6
Circumference	1686.4	66.4

How Tall Is A 145/80r12 Tire?

The Tire Height of the 145/80r12 tire size is 21.1 inches (536.8 mm). This measurement, also known as the tire diameter, represents the distance from one edge of the tire to the other, passing through the center. It’s critical in determining the tire’s compatibility with a vehicle and can impact the speedometer’s accuracy.

What Is the 145/80r12 Width In Inches?

The tread width of the 145/80r12 tire size is 5.7 inches (145 mm). Tread width refers to the width of the part of the tire that comes into contact with the road. It plays a significant role in handling, traction, and braking. A wider tread can provide more grip, but it can also lead to higher rolling resistance.

What Is the 145/80r12 Sidewall Height?

The sidewall height of the 145/80r12 tire size is 4.6 inches (116 mm). The sidewall height, or tire aspect ratio, represents the height of the tire from the rim to the tread. It affects the tire’s performance characteristics, including ride comfort and handling. A lower aspect ratio indicates a shorter sidewall, which usually leads to improved steering response and cornering stability.

What Is the 145/80r12 Tire Circumference?

The circumference of the 145/80r12 tire size is 66.4 inches (1686.4 mm). The circumference is the distance around the outside of the tire, which affects how the tire interacts with the road surface and can impact the speedometer reading.

What Is the 145/80r12 Revolutions Per Mile?

For the 145/80r12 tire size, there are approximately 954 revolutions per mile. This figure is essential for calculating speedometer and odometer readings, and overall vehicle fuel efficiency.

What Is the 145/80r12 Rims Size?

For the 145/80r12 tire size, the rim diameter is 12 inches (305 mm). This measurement corresponds to the inner diameter of the tire, which must match the diameter of the wheel rim for proper fitment.

Fitment Guide
The 145/80r12 tire size fits a variety of vehicles, including:

• CHEVROLET: Sprint (1985 – 1988)
• DAEWOO: Fino (1991 – 2001), Tico (1991 – 2001)
• DAIHATSU: Atrai (2021 – 2023), Cuore (1980 – 1985), Esse (2005 – 2011), Hijet (2017 – 2023), Hijet Truck (2021 – 2023), Mira (1980 – 2009)
• GEO: Metro (1989 – 1994)
• HONDA: Acty (1981 – 1999), Life (1971 – 2003), N-VAN (2018 – 2023), That’s (2002 – 2007)
• HYUNDAI: Eon (2011 – 2019)
• MAHINDRA: Jeeto (2015 – 2020), Supro (2015 – 2022)
• MARUTI: Alto (2000 – 2022), Alto 800 (2014 – 2018)
• MAZDA: Scrum Van (2015 – 2023)
• MITSUBISHI: Minica (1998 – 2007), Minicab Van (2015 – 2023), Toppo BJ (2002 – 2003), Town Box (2015 – 2023)
• NISSAN: NV100 Clipper (2015 – 2023), NV100 Clipper Rio (2015 – 2023)
• SUBARU: Sambar Van (2012 – 2023), Sambar Truck (2005 – 2009)
• SUZUKI: Alto 800 (2014 – 2022), Every (2005 – 2022), Every Wagon (2005 – 2020)
• TATA: Ace Zip (2010 – 2022), Magic Iris (2010 – 2022)
• TOYOTA: Pixis Van (2017 – 2023)
• VAZ: 1111 (1990 – 2006)

Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original tire to ensure proper fitment and to prevent any disruption in the vehicle’s systems.

For the 145/80r12 tire, suitable replacements could include sizes like 165/70R12, 135/80R12, 155/70R12, those falling within the 3% diameter variance.

Our Observation
In our observation, the 145/80r12 tire size is commonly used in compact and subcompact vehicles due to its balanced blend of performance and comfort characteristics. It provides a satisfying driving experience with its efficient fuel economy, good traction, and moderate ride comfort.

Moreover, the widespread vehicle compatibility makes it a flexible choice for numerous drivers worldwide. However, as with any tire, drivers should consider their specific needs and driving conditions before choosing this size.

• 155/70r12 in inches