If you are checking your height, buying furniture, comparing international measurements, or simply trying to make sense of a metric measurement, you may have wondered: what’s 170cm in feet?
The quick answer is 170 centimeters = 5.577 feet, or approximately 5 feet 7 inches. More precisely, 170 cm equals 5 feet 6.93 inches.
That small distinction can matter. A height chart may round 170 cm to 5’7″, while a construction project, engineering calculation, or measurement calculator may require several decimal places.
The conversion itself is straightforward because centimeters and feet have a fixed mathematical relationship. Once you know that 1 foot equals 30.48 centimeters, you can convert 170 cm—or almost any other length—without guesswork.
In this guide, we’ll walk through the exact calculation, explain the difference between decimal feet and feet-and-inches, provide useful conversion charts, and show where this measurement appears in everyday life.
1. Quick Answer: What’s 170cm in Feet?
170 cm = 5.5774 feet
For everyday use:
170 cm ≈ 5 feet 7 inches (5’7″)
Here’s the calculation:
170 ÷ 30.48 = 5.5774 feet
If you want the result in feet and inches:
- Take the whole number: 5 feet
- Convert the remaining 0.5774 feet into inches.
- Multiply by 12:
0.5774 × 12 = 6.929 inches
So:
170 cm = 5 feet 6.93 inches
Rounded to the nearest inch, that becomes 5 feet 7 inches.
This is the most useful answer for height measurements, clothing, sports profiles, and other everyday situations.
2. Understanding the Units
Centimeters belong to the metric system, while feet are primarily associated with the U.S. customary system and are also commonly used in everyday measurement in several other countries.
What is a centimeter?
A centimeter (cm) is a metric unit of length.
- 100 centimeters = 1 meter
- 1 centimeter = 0.01 meter
- 1 inch = exactly 2.54 centimeters
Centimeters are commonly used for measuring height, clothing dimensions, small objects, furniture, and everyday distances.
What is a foot?
A foot (ft) is a unit of length in the U.S. customary system.
- 1 foot = 12 inches
- 1 foot = exactly 30.48 centimeters
- 3 feet = 1 yard
Feet are frequently used in the United States for people’s height, room dimensions, building measurements, distances, and construction work.
Metric vs. U.S. customary measurements
| Measurement | Metric | U.S. customary |
|---|---|---|
| Small length | Centimeter | Inch |
| Medium length | Meter | Foot |
| Larger everyday length | Kilometer | Mile |
| 1 foot | 30.48 cm | 1 ft |
| 1 inch | 2.54 cm | 1 in |
Understanding these relationships makes length conversion much easier.
3. What’s 170cm in Feet? Conversion Formula
The simplest conversion formula is:
Feet = Centimeters ÷ 30.48
For 170 cm:
170 ÷ 30.48 = 5.5774 feet
Therefore:
170 cm = 5.5774 ft
If you need feet and inches rather than decimal feet, use a second step.
Step 1: Find whole feet
The whole-number portion is:
5 feet
Step 2: Find the remaining feet
5.5774 − 5 = 0.5774 feet
Step 3: Convert the remainder to inches
Since one foot contains 12 inches:
0.5774 × 12 = 6.929 inches
Final result
170 cm = 5 ft 6.93 in
For normal height descriptions:
170 cm ≈ 5 ft 7 in
Why does the formula work?
A foot is defined as exactly 30.48 cm. Dividing a centimeter measurement by 30.48 therefore tells you how many feet are contained in that measurement.
The formula works for any centimeter value:
centimeters ÷ 30.48 = feet
For example:
- 100 cm ÷ 30.48 = 3.2808 ft
- 150 cm ÷ 30.48 = 4.9213 ft
- 180 cm ÷ 30.48 = 5.9055 ft
4. 170cm in Feet: Conversion Table
A conversion chart can be faster than performing the calculation every time.
| Centimeters | Decimal Feet | Feet & Inches |
|---|---|---|
| 160 cm | 5.249 ft | 5’3.0″ |
| 165 cm | 5.413 ft | 5’5.0″ |
| 168 cm | 5.512 ft | 5’6.1″ |
| 170 cm | 5.577 ft | 5’6.9″ |
| 172 cm | 5.643 ft | 5’7.7″ |
| 175 cm | 5.741 ft | 5’8.9″ |
| 178 cm | 5.840 ft | 5’10.1″ |
| 180 cm | 5.906 ft | 5’10.9″ |
| 183 cm | 6.004 ft | 6’0.0″ |
| 185 cm | 6.070 ft | 6’0.8″ |
For most everyday purposes, 170 cm is best expressed as approximately 5’7″.
Common centimeter-to-foot values
| Centimeters | Feet | Approximate Height |
|---|---|---|
| 150 cm | 4.921 ft | 4’11” |
| 155 cm | 5.085 ft | 5’1″ |
| 160 cm | 5.249 ft | 5’3″ |
| 165 cm | 5.413 ft | 5’5″ |
| 170 cm | 5.577 ft | 5’7″ |
| 175 cm | 5.741 ft | 5’9″ |
| 180 cm | 5.906 ft | 5’11” |
| 185 cm | 6.070 ft | 6’1″ |
| 190 cm | 6.234 ft | 6’3″ |
| 195 cm | 6.398 ft | 6’5″ |
| 200 cm | 6.562 ft | 6’7″ |
5. Practical Examples of 170 cm in Feet
A measurement of 170 cm can appear in many situations beyond a simple height question.
Example 1: Checking a person’s height
Suppose a medical or school record lists someone’s height as 170 cm.
Convert it using:
170 ÷ 30.48 = 5.5774 ft
The practical height is therefore:
5 feet 6.93 inches, commonly rounded to 5 feet 7 inches.
Example 2: Converting a decimal-foot measurement
Imagine a construction plan specifies 5.577 feet.
To express that in centimeters:
5.577 × 30.48 ≈ 170 cm
This illustrates an important point: converting in the opposite direction requires multiplication rather than division.
Example 3: Clothing or sports information
A sports profile may list an athlete’s height in centimeters, while a U.S. website displays feet and inches.
If the profile says 170 cm, the equivalent U.S.-style height is approximately:
5’7″
Example 4: Furniture and interior design
Suppose a cabinet is listed as 170 cm tall.
For a U.S. project, convert the measurement:
170 cm ≈ 5 ft 7 in
That makes it easier to compare the cabinet with a room’s ceiling height, doorway, or other furniture measured in feet and inches.
Example 5: School measurement exercise
A student asked to convert 170 cm to feet can use:
170 ÷ 30.48 = 5.5774 ft
If the teacher asks for feet and inches, continue:
0.5774 × 12 = 6.93 in
Answer:
5 ft 6.93 in
6. Common Conversion Mistakes
Even simple unit conversion can produce incorrect answers when the units are mixed up.
1. Multiplying instead of dividing
To convert centimeters to feet, divide by 30.48.
Correct: 170 ÷ 30.48
Not:
170 × 30.48
Multiplication is used when converting feet to centimeters.
2. Treating decimal feet as feet and inches
This is a very common mistake.
5.577 feet does not mean 5 feet 57.7 inches.
The decimal portion must be multiplied by 12:
0.577 × 12 ≈ 6.93 inches
Therefore, 5.577 feet is about 5 feet 7 inches.
3. Rounding too early
If you round 170 cm to 5.6 feet immediately, you lose some precision.
For casual height descriptions, that’s usually harmless. For technical work, retain additional decimal places until the final step.
4. Confusing inches with centimeters
Remember:
1 inch = 2.54 cm
while:
1 foot = 30.48 cm
Those are different conversion factors.
5. Misreading a measuring tape
A tape measure may show inches, feet, centimeters, or millimeters. Before recording a measurement, check which scale you’re reading.
Expert tip: For construction or engineering work, write the unit beside every measurement. “170” by itself is ambiguous; “170 cm” is precise.
7. Quick Mental Conversion Tips
You don’t always need a conversion calculator.
For a fast estimate, remember:
1 foot ≈ 30.5 cm
So:
170 ÷ 30.5 ≈ 5.57 feet
That immediately tells you the answer is a little under 5.6 feet.
For height conversions, memorizing a few reference points is even more useful:
- 152.4 cm = 5 feet
- 160 cm ≈ 5’3″
- 165 cm ≈ 5’5″
- 170 cm ≈ 5’7″
- 175 cm ≈ 5’9″
- 180 cm ≈ 5’11”
- 183 cm = approximately 6 feet
A professional calculation habit
When accuracy matters:
- Write down the original unit.
- Write the conversion factor.
- Perform the calculation.
- Keep extra decimal places during intermediate steps.
- Round only the final answer.
This method reduces unit-conversion errors and makes your work easier to check.
8. Comparison Between Centimeters and Feet
| Feature | Centimeter | Foot |
|---|---|---|
| Measurement system | Metric | U.S. customary |
| Abbreviation | cm | ft |
| Basic relationship | 100 cm = 1 m | 12 in = 1 ft |
| Exact conversion | 1 cm = 0.0328084 ft | 1 ft = 30.48 cm |
| Typical precision | Convenient for small measurements | Convenient for everyday U.S. measurements |
| Common uses | Height, clothing, small dimensions | Height, rooms, construction |
| Main advantage | Decimal-based metric system | Familiar for U.S. everyday measurements |
Centimeters are particularly convenient when measurements need consistent decimal scaling. Feet and inches can be more intuitive for everyday measurements in the United States.
Neither system changes the physical size being measured—the difference is simply how that size is expressed.
9. Why Accurate Measurement Matters
Accurate measurement is more than getting a number to look right. A small conversion error can create a larger practical problem when measurements are used repeatedly.
Construction
A contractor converting a cabinet height, doorway measurement, or material length needs consistent units. A rounding error repeated across several components can affect fit and alignment.
Engineering and manufacturing
Manufacturers often work with precise tolerances. Converting between metric and U.S. customary units may require several decimal places rather than a rounded whole number.
Home renovation
Imagine ordering a piece of furniture listed as 170 cm tall for a space with a maximum clearance of 5 feet 8 inches.
Since:
170 cm ≈ 5 feet 7 inches
the furniture is roughly one inch below that clearance.
That difference could be important when installing it beneath a shelf or architectural feature.
Education
Learning measurement conversion teaches more than memorizing a formula. Students practice ratios, multiplication, division, decimals, rounding, and dimensional reasoning.
Real-world case study
Consider a homeowner buying a 170 cm-tall storage cabinet for a room with a 5 ft 8 in opening.
First convert the cabinet:
170 cm = 5 ft 6.93 in
Then compare:
5 ft 8 in − 5 ft 6.93 in ≈ 1.07 in
The cabinet is approximately 1.1 inches shorter than the available height.
That is much more useful than simply knowing that 170 cm equals 5.577 feet.
10. Final Thoughts: What’s 170cm in Feet?
So, what’s 170cm in feet?
The exact decimal conversion is:
170 cm = 5.5774 feet
Expressed in the more familiar feet-and-inches format:
170 cm = 5 feet 6.93 inches ≈ 5 feet 7 inches
The key formula to remember is:
Feet = centimeters ÷ 30.48
For the reverse conversion:
Centimeters = feet × 30.48
The most important lesson is to distinguish decimal feet from feet and inches. A value such as 5.577 feet needs to be converted properly before it can be described as 5 feet and some number of inches.
Whether you’re checking a height, planning a DIY project, comparing product dimensions, or working through a measurement problem at school, understanding the conversion makes the number much easier to use.
Ready to convert another measurement? Explore more measurement guides and conversion charts for length, weight, volume, and other common U.S. customary and metric units.
Frequently Asked Questions
1. What’s 170cm in feet exactly?
170 cm equals approximately 5.5774 feet. If you express the same measurement in feet and inches, it is 5 feet 6.93 inches. For everyday use, this is normally rounded to 5 feet 7 inches (5’7″). The exact calculation is 170 ÷ 30.48 because one foot is exactly 30.48 centimeters.
2. Is 170 cm the same as 5’7″?
Not exactly, but it is extremely close. 5 feet 7 inches equals 170.18 cm, while 170 cm equals 5 feet 6.93 inches. The difference is only about 0.18 cm, so standard height charts and everyday conversations generally round 170 cm to 5’7″.
3. What is the easiest way to convert 170 cm to feet?
The easiest method is to divide the centimeter measurement by 30.48. For 170 cm, calculate 170 ÷ 30.48 = 5.5774 feet. If you need feet and inches, keep the 5 feet and multiply the decimal remainder, 0.5774, by 12 to get approximately 6.93 inches.
4. Can I convert 170 cm to feet without a calculator?
Yes. For a quick estimate, remember that one foot is about 30.5 cm. Dividing 170 by 30.5 gives roughly 5.57 feet, which is close enough to recognize the measurement as approximately 5 feet 7 inches. For technical or highly precise work, use 30.48 rather than the rounded 30.5.
5. Why is the 170 cm to feet conversion useful?
This conversion is useful whenever metric and U.S. customary units need to be compared. Height records, clothing information, sports profiles, furniture dimensions, construction plans, home improvement projects, and international product specifications may use different measurement systems.
6. Is the conversion from 170 cm to feet exact?
The mathematical conversion is exact when using the defined relationship 1 foot = 30.48 centimeters. The decimal result is approximately 5.5774278 feet. However, writing the answer as 5’7″ involves rounding because 170 cm is actually about 5 feet 6.93 inches.
7. What formula should I remember for centimeter-to-feet conversion?
Remember:
Feet = centimeters ÷ 30.48
For the reverse direction:
Centimeters = feet × 30.48
If you need inches as well, multiply the decimal portion of the feet result by 12. This gives a reliable method for converting measurements in either direction.
8. How many inches is 170 cm?
Since one inch equals exactly 2.54 cm, divide 170 by 2.54:
170 ÷ 2.54 = 66.929 inches
So, 170 cm is approximately 66.93 inches, or about 67 inches when rounded to the nearest whole inch.
9. What height is closest to 170 cm?
The closest common U.S. height description is 5 feet 7 inches. In centimeters, 5’7″ equals approximately 170.18 cm. That means 170 cm and 5’7″ are practically interchangeable for many everyday purposes, although technical applications should retain the more precise value.
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