Convert any height or length from feet and inches to centimeters.
Need to convert imperial measurements to the metric system in a flash? Our Feet + Inches → Centimeters converter is the simplest way to translate any height or length into centimeters with pinpoint accuracy—no math degree required. Whether you are a student, parent, DIY enthusiast, interior designer, web developer, or fitness buff tracking progress, this tool (and the guide below) will give you the numbers and the know‑how.
Enter your values below and click Convert. Centimeters appear instantly:
The world uses two major systems of measurement: the Imperial/US Customary system—which includes feet (ft) and inches (in)—and the International System of Units (SI), where centimeters (cm) are a core unit of length. When you browse global e‑commerce sites, follow woodworking plans from Europe, or fill out medical forms abroad, you often need to convert values quickly. Accurate conversion prevents costly mistakes in construction, guarantees fashion sizing consistency, and even ensures health records align with international standards.
Converting composite imperial units to centimeters is a two‑step process:
Expressed as an equation:
centimeters = (feet × 12 + inches) × 2.54Convert 5 feet 9 inches to centimeters:
Therefore, 5′ 9″ = 175.26 cm.
Some charts display height in decimal feet (e.g., 5.75 ft). To convert feet + inches to decimal feet, divide inches by 12, then add the feet value. Because our calculator delivers centimeters directly, you can skip this extra step—but it’s good knowledge when you encounter mixed systems.
Below are frequently referenced heights converted to centimeters:
Remember, rounding rules vary by industry. Medical records often round to one decimal place (e.g., 175.3 cm), while fashion may round to whole centimeters.
Body Mass Index (BMI), pediatric growth charts, and athletic performance statistics frequently require centimeters. Trainers and healthcare professionals use metric values for universal consistency.
Blueprint software, IKEA furniture plans, and international building codes are metric‑centric. Accurate conversions ensure your new bookcase fits that niche perfectly, preventing both waste and frustration.
Global apparel brands publish size charts in centimeters. Customers who shop cross‑border avoid return hassles by converting body measurements correctly the first time.
Physics labs, engineering courses, and science fairs worldwide default to SI units. Students who master quick conversion gain clarity and score higher on lab reports and exams.
0.375 in).175,26) rather than periods (175.26). Consistency is key.To reverse the process:
Example: 180 cm ÷ 2.54 = 70.866 in.
70 in = 5 ft 10 in, remainder ≈ 0.866 in (≈ ⅞ in).
Our lightweight JS function (below) can be copied into spreadsheets, embedded in websites, or integrated into native apps. It has no dependencies apart from vanilla JavaScript, so performance overhead is negligible—a crucial factor for high‑traffic conversion pages.
function ftInToCm(feet, inches) {
return (feet * 12 + inches) * 2.54;
}Call it anywhere in your project for instant, accurate results.
Planning to automate hundreds of conversions? Wrap the function in a simple REST endpoint:
// Example Express.js snippet
app.get('/convert/ftin-to-cm', (req, res) => {
const { ft = 0, inch = 0 } = req.query;
const centimeters = ftInToCm(Number(ft), Number(inch));
res.json({ centimeters });
});Now any device—mobile, IoT, or server‑side script—can request precise centimeter values over HTTP.
30.48 cm.2.54 cm.Now you’re fully equipped—mathematically and practically—to switch between feet + inches and centimeters with total confidence. Happy measuring!
The world uses two major systems of measurement: the Imperial/US Customary system—which includes feet (ft) and inches (in)—and the International System of Units (SI), where centimeters (cm) are a core unit of length. When you browse global e‑commerce sites, follow woodworking plans from Europe, or fill out medical forms abroad, you often need to convert values quickly. Accurate conversion prevents costly mistakes in construction, guarantees fashion sizing consistency, and even ensures health records align with international standards.
Converting composite imperial units to centimeters is a two‑step process:
Expressed as an equation:
centimeters = (feet × 12 + inches) × 2.54Convert 5 feet 9 inches to centimeters:
Therefore, 5′ 9″ = 175.26 cm.
Some charts display height in decimal feet (e.g., 5.75 ft). To convert feet + inches to decimal feet, divide inches by 12, then add the feet value. Because our calculator delivers centimeters directly, you can skip this extra step—but it’s good knowledge when you encounter mixed systems.
Below are frequently referenced heights converted to centimeters:
Body Mass Index (BMI), pediatric growth charts, and athletic performance statistics frequently require centimeters. Trainers and healthcare professionals use metric values for universal consistency.
Blueprint software, IKEA furniture plans, and international building codes are metric‑centric. Accurate conversions ensure your new bookcase fits that niche perfectly, preventing both waste and frustration.
Global apparel brands publish size charts in centimeters. Customers who shop cross‑border avoid return hassles by converting body measurements correctly the first time.
Physics labs, engineering courses, and science fairs worldwide default to SI units. Students who master quick conversion gain clarity and score higher on lab reports and exams.
0.375 in).175,26) rather than periods (175.26). Consistency is key.The origins of the foot as a unit of length trace back to ancient Egypt and Mesopotamia, where body parts served as convenient—but imprecise—standards. The Roman pes measured roughly 29.6 cm, while the Anglo‑Saxon foot varied from shire to shire. It was not until 1959 that the modern International Foot was standardized at exactly 0.3048 meters. Inches evolved from the width of a man’s thumb, formalized in England under King Edward II as “three barleycorns laid end to end.” By contrast, the centimeter emerged during the French Revolution when scientists sought a universal system based on Earth’s meridian. The ensuing metric system gained speed in the 19th century, culminating in today’s SI, which underpins science, trade, and technology.
Save or print the table below for offline reference:
| Feet + Inches | Total Inches | Centimeters |
|---|---|---|
| 4′ 6″ | 54 | 137.16 |
| 5′ 0″ | 60 | 152.40 |
| 5′ 6″ | 66 | 167.64 |
| 6′ 0″ | 72 | 182.88 |
| 6′ 6″ | 78 | 198.12 |
In aerospace or semiconductor design, tolerances can dip below one‑hundredth of a millimeter. A seemingly tiny rounding error—say 0.1 cm—can derail component alignment. When conversions feed directly into CAD software, use full‑precision values (at least four decimal places) to maintain integrity across the design‑manufacture‑quality pipeline.
“One Two—Two Five Four” helps you recall the two constants: 1 foot equals 12 inches, and 1 inch equals 2.54 cm. Say it aloud a few times and you will never forget the basics.
Common fractions converted to centimeters:
To reverse the process:
Example: 180 cm ÷ 2.54 = 70.866 in.
70 in = 5 ft 10 in, remainder ≈ 0.866 in (≈ ⅞ in).
Our lightweight JS function (below) can be copied into spreadsheets, embedded in websites, or integrated into native apps. It has no dependencies apart from vanilla JavaScript, so performance overhead is negligible—a crucial factor for high‑traffic conversion pages.
function ftInToCm(feet, inches) {
return (feet * 12 + inches) * 2.54;
}Call it anywhere in your project for instant, accurate results.
Planning to automate hundreds of conversions? Wrap the function in a simple REST endpoint:
// Example Express.js snippet
app.get('/convert/ftin-to-cm', (req, res) => {
const { ft = 0, inch = 0 } = req.query;
const centimeters = ftInToCm(Number(ft), Number(inch));
res.json({ centimeters });
});Now any device—mobile, IoT, or server‑side script—can request precise centimeter values over HTTP.