Inches to Centimeters Converter

About Length Conversion

Need to convert inches to centimeters? You'll use this more than you think. Inches are everywhere in the US—screen sizes, paper dimensions, wrench sizes, you name it. But the rest of the world works in centimeters, so when you're shopping online, reading specs, or working on projects, you'll need to convert.

An inch is one of those measurements that's so ingrained in American life we barely think about it. It's 1/12 of a foot, or exactly 2.54 centimeters. That 2.54 number is important—it's the exact conversion factor, not an approximation. Remember that and you've got the key to converting any inch measurement.

Centimeters are part of the metric system, which most of the world uses. One centimeter is 1/100 of a meter, so everything's in nice round numbers. To convert inches to centimeters, you multiply by 2.54. Six inches becomes 15.24 centimeters. Twelve inches (one foot) is 30.48 centimeters. Simple math, but pulling out a calculator every time gets old.

Screen sizes are probably where most people run into this. TVs and monitors are measured diagonally in inches in the US. A 55-inch TV sounds big, but what's that in centimeters? About 139.7 cm. Phone screens too—that 6.1-inch iPhone display is roughly 15.5 cm. Understanding both measurements helps when comparing products from different regions or reading international reviews.

Paper sizes are another common one. US letter paper is 8.5 by 11 inches. In centimeters, that's 21.59 by 27.94 cm. A4 paper, used in most of the world, is 21 by 29.7 cm. If you're printing documents or ordering supplies internationally, knowing these conversions matters.

DIY and woodworking projects constantly mix measurements. You might have a board that's 24 inches wide, but the hardware you need comes in metric sizes. That shelf bracket might be listed as 10 cm wide—will it fit? (24 inches is 60.96 cm, so yes, plenty of room.) Or you're following a tutorial from Europe where everything's in centimeters, but you're measuring in inches.

Sewing and crafting often involves this conversion too. Patterns from different countries use different units. A seam allowance might be 1.5 cm in one pattern and 5/8 inch in another—they're basically the same (5/8 inch is about 1.59 cm), but you need to know that. Fabric widths, button sizes, needle sizes—it all depends on where the pattern came from.

Cooking and baking sometimes use inches, especially for pan sizes. A 9-inch cake pan is standard in the US, but European recipes might call for a 23 cm pan. They're close enough that you can usually substitute, but it helps to know. Same with pizza sizes—a 12-inch pizza is about 30.5 cm.

Construction and renovation work mixes measurements constantly. Pipe diameters, wire gauges, fixture sizes—some are in inches, some in millimeters or centimeters. A 2-inch pipe is about 5.08 cm. A standard door frame is 80 inches tall, which is 203.2 cm. Knowing these conversions helps when you're working with materials from different suppliers.

Tech specs are another area where this comes up. Screen resolutions, device dimensions, port sizes—manufacturers from different regions use different units. A USB-C port is about 0.84 cm wide, but some might describe it as 0.33 inches. Same thing, different numbers.

Even something as simple as measuring yourself involves this. Height in inches needs converting for some forms or records. A person who's 70 inches tall (5 feet 10 inches) is 177.8 cm. Weight isn't the same, but sometimes body measurements need converting too.

This converter handles it all. Type in inches, get centimeters instantly. No math, no calculator needed. It works offline, so you can use it in workshops or job sites without internet. Free, simple, and does exactly what you need—converts inches to centimeters without any hassle.

Features

• Instant conversion from inches to centimeters
• Real-time calculations
• Common length reference table
• High precision results
• Mobile-friendly interface
• No registration required

How to Use

1. Enter length in inches
2. Get instant conversion to centimeters
3. View common length references
4. Copy results as needed

Understanding Length Units

Inch (in)

• Imperial/US unit
• 1/12 of a foot
• Common in US/UK
• Used in engineering

Centimeter (cm)

• Metric system unit
• 1/100 of a meter
• Used worldwide
• SI derived unit

Common Conversions

Small Measurements

• 1 inch = 2.54 centimeters
• 2 inches = 5.08 centimeters
• 3 inches = 7.62 centimeters
• 6 inches = 15.24 centimeters

Large Measurements

• 12 inches = 30.48 centimeters
• 24 inches = 60.96 centimeters
• 36 inches = 91.44 centimeters
• 48 inches = 121.92 centimeters

Applications

Engineering

• Technical drawings
• Component sizes
• Material dimensions
• Tool measurements

Construction

• Building materials
• Fixture sizes
• Cabinet work
• Furniture making

General Use

• Home projects
• Crafting
• Sewing
• DIY work

Why Use Our Converter

• Instant results
• High accuracy
• Clear interface
• Works offline
• Free to use
• No ads or popups