5’5 Feet in cm: Exact Conversion and Common Height Comparisons

Most people think 5’5″ equals 165 cm, but the exact conversion is 165.1 cm — a difference that matters for clothing sizes and health metrics. This guide walks you through the precise formula, clears up common confusions with nearby heights, and shows you when rounding works and when it doesn’t.

5’5″ in centimeters: 165.1 cm ·
Conversion factor: 1 foot = 30.48 cm ·
Average US women’s height: 5’4″ (162.6 cm) ·
Common comparison: 170 cm ≈ 5’7″

How many cm is 5ft 5in?

The direct answer: 5 feet 5 inches equals exactly 165.1 centimeters Inch Calculator (height converter tool). This value comes from a standardized two-step method that any height converter or math reference uses.

The exact conversion: 5’5″ = 165.1 cm

1. Feet to inches: 5 ft × 12 = 60 inches
2. Add remaining inches: 60 + 5 = 65 total inches
3. Inches to cm: 65 × 2.54 = 165.1 cm

The conversion factor of 2.54 cm per inch is defined internationally and hasn’t changed since 1959 RapidTables (unit conversion standard). That means 165.1 cm is authoritative, not an approximation.

How to use the formula

The same pattern works for any height. Multiply the feet by 12, add the inches, then multiply the total by 2.54. With this formula, you can check any chart or calculator in seconds.

13 heights, one pattern: every inch adds exactly 2.54 cm, building a clean ladder from 5’0″ through 6’0″.

The implication: once you know the formula, you never need to memorize each height. Just start with 152.4 cm at 5’0″ and add 2.54 per inch, or use 30.48 per foot.

Is 164 cm 5’4″ or 5’5″?

164 cm is 5’4.6″, so it rounds to 5’4.5″ in most charts. It is closer to 5’4″ (162.6 cm) than to 5’5″ (165.1 cm).

Is 168 cm 5’5″ or 5’6″?

168 cm is 5’6.1″, so it rounds to 5’6″ (167.6 cm). It is not 5’5″ — that would be 165.1 cm. The 3 cm gap is significant for clothing and health metrics.

Is 170 cm 5’5″ or 5’7″?

This is one of the most common conversion questions — and the answer trips people up because of rounding.

170 cm in feet and inches

170 cm divided by 2.54 gives 66.93 inches. That’s 5 feet and 6.93 inches — closer to 5’7″ than 5’5″. Specifically, 5’7″ equals 170.18 cm The Calculator Site (height converter). So 170 cm is essentially a tall 5’7″, not a 5’5″.

How to check your height

• 5’5″ (~165 cm) is 65 inches or 165.1 cm
• 5’6″ (~168 cm) is 66 inches or 167.6 cm
• 5’7″ (~170 cm) is 67 inches or 170.2 cm

The pattern: 170 cm sits a full 5 cm above 5’5″. Rounding it down to 5’5″ would mean dropping nearly two inches — an error that matters for clothing sizes, airline seat dimensions, and health metrics.

Is 5’7″ tall for a girl?

Height perception varies by country and context, but the data is clear.

Average female height by country

• United States: average female height is 5’4″ (162.6 cm) CDC (National Health Statistics)
• United Kingdom: average female height is 5’3.5″ (161.6 cm) NHS (health reference)
• Netherlands: average female height is 5’7″ (170 cm)

Height percentiles

In the US, a woman who is 5’7″ sits around the 75th percentile for height CDC (clinical growth charts). That means she’s taller than about three out of four women. In the Netherlands, 5’7″ is right at the average. So whether 5’7″ is “tall” depends entirely on where you are.

What this means: 5’7″ is above average in most English-speaking countries but normal in the tallest nations. For clothing and health contexts, the local average matters more than a global one-size-fits-all label.

Is 180 cm 6 feet?

Another frequent point of confusion — and the math doesn’t support the shortcut.

180 cm to feet and inches

180 cm ÷ 2.54 = 70.87 inches, which is 5 feet and 10.87 inches. That’s 5’10.9″, not 6’0″. The exact figure for 6’0″ is 182.88 cm RapidTables (cm to feet converter). So 180 cm falls about 3 cm short of a true 6 feet.

Why 180 cm is often called 6’0″

In everyday conversation and driver’s license forms, 180 cm gets rounded up to 6’0″. It’s a convenient shortcut, but it creates a persistent myth. If you’re measuring for a sport roster, a medical record, or a modeling portfolio, that rounding can shift a category.

The catch: rounding 180 cm to 6’0″ works socially but fails in any precision-driven setting. For accurate height records, use 5’11” (180.3 cm) or the exact 180 cm value.

How do you convert feet and inches to centimeters?

Here’s the step-by-step method you can apply to any height.

The formula with feet and inches

cm = (feet × 30.48) + (inches × 2.54) Math Salamanders (conversion formula reference)

This works because 1 foot = 30.48 cm and 1 inch = 2.54 cm. When you have both feet and inches, multiply each part separately and add the results.

Example: 5’5″ conversion

Three steps, one pattern: the formula works the same whether you’re converting 4’10” or 6’4″.

Using online calculators

If you’d rather not do the math, tools like Inch Calculator (online height converter) and The Calculator Site (height conversion tool) handle the calculation instantly. They also show the breakdown so you can verify the steps.

The implication: once you understand the formula, no height conversion will ever feel like guesswork again. You can check any calculator, any chart, any sizing guide with confidence.

“The standard conversion from feet and inches to centimeters uses a fixed factor of 2.54 cm per inch, which has been the international definition since 1959.”

RapidTables (unit conversion reference)

“For accurate health assessments, height should always be recorded in centimeters using the precise conversion formula, not rounded approximations.”

NHS (health measurement guidance)

For anyone shopping for clothes online, filling out a health form, or checking a height requirement, the choice is simple: use the exact 165.1 cm for 5’5″, understand where rounding works and where it doesn’t, and keep this guide bookmarked for the next time you need to convert in a hurry.

See also: 172 cm in Feet and 77°F to Celsius.

Frequently asked questions