Which countries still use inches?

Which countries still use inches: US, Liberia & Myanmar

Discover which nations maintain traditional imperial measurements instead of adopting the global standard. Understanding global measurement differences provides clear context for international trade and travel standards today. Explore the remaining countries that continue utilizing which countries still use inches and feet for daily life.

Which countries still use inches?

The United States remains the primary country that officially relies on inches and the U.S. Customary System for everyday measurements, construction, and commerce. While most of the world shifted entirely to the metric system decades ago, a small handful of nations and global industries still hold onto the inch.

Lets be honest, transitioning an entire nations infrastructure is a massive headache, which explains why a few holdouts remain.

Official government use around the globe

Official government recognition of the inch is remarkably rare today. Aside from the United States, only Liberia and Myanmar have traditionally been listed in international documentation as officially recognizing imperial or customary units alongside metric efforts.

That said, even these official holdouts are slowly changing behind the scenes. In reality, both Liberia and Myanmar have been gradually transitioning toward the metric system to align with global trade standards.

The unique case of the United States

In the United States, inches dictate everything from highway speed limits expressed in miles to residential real estate floor plans and human height charts. This deeply rooted reliance stems from historical adoption of British imperial units.

Despite multiple legislative pushes to adopt the metric system over the decades, public resistance and the sheer cost of rewriting building codes and manufacturing standards kept the customary system firmly in place.

Informal and mixed use in metric countries

Even in nations where the metric system is the undisputed law of the land, inches refuse to disappear entirely from daily speech and specific trades. This creates a fascinating cultural split between official documentation and everyday conversation. What comes next surprises many visitors who assume metric dominance is 100 percent absolute.

Everyday habits in the United Kingdom and beyond

Take the United Kingdom as a prime example. Official government documents, scientific laboratories, and road signs use the metric system strictly.

Yet, walk into a local pub or chat with neighbors, and people frequently describe their height in feet and inches or measure their weight in stones. Older generations and traditional trades across the Commonwealth often cling to these older units out of sheer habit.

Specialized trades and real estate quirks

In countries like India, construction workers, carpenters, and real estate agents routinely measure ceiling heights, timber lengths, and plot dimensions in feet and inches. Why? Because older blueprints and tools passed down through generations are calibrated to imperial dimensions. It is a classic case of practical tradition overriding bureaucratic mandates.

Universal industry standards that defy local laws

Some items are measured in inches everywhere in the world, completely ignoring local legal frameworks. If you buy a television in Paris, Tokyo, or Sydney, the screen size is sold by its diagonal measurement in inches.

The same global rule applies to smartphone displays, computer monitors, and automotive tire rims. Manufacturing efficiency dictates that parts like steel pipe fittings, bicycle tubes, and clothing waist sizes use countries using imperial system standards internationally to simplify global supply chains.

Comparison of measurement systems by region

Official U.S. Customary System

• Minimal official movement toward full metric adoption
• United States
• Dominates construction, road signs, consumer products, and weather reports

Mixed Cultural Use

• Stable coexistence between both systems
• United Kingdom and parts of the Commonwealth
• Metric for science and law, imperial for personal height and informal speech

Global Industrial Exception

• Permanent fixture driven by manufacturing standardization
• Worldwide (Global market)
• Used exclusively for display screens, tire rims, and specific engineering parts

Navigating international manufacturing specs

Minh, a mechanical engineer working at a component factory in Ho Chi Minh City, spent weeks trying to source replacement valves for an imported American processing machine.

His first attempt failed because he ordered standard metric pipe fittings based on local blueprints, which completely leaked when screwed into the legacy machinery.

After a frustrating afternoon of measuring threads with a digital caliper, he realized the equipment relied strictly on inch-based National Pipe Thread standards.

He adjusted his procurement strategy to import custom-threaded adapters, reducing equipment downtime by 90 percent and learning a permanent lesson about global industrial exceptions.