20cm to Inches – How to Convert and Why It Matters
If you’re wondering how to convert 20cm to inches, you’re in the right place. Whether you’re working on a DIY project, measuring a product, or simply curious about unit conversions, understanding how to switch between centimeters and inches is essential. In this article, we’ll cover the exact conversion formula, practical examples, and real-life applications of this measurement.
20cm to Inches Conversion Formula
The simplest way to convert centimeters to inches is by using the conversion factor:
1 cm = 0.393701 inches
Using this, we can easily convert 20cm to inches:
So, 20cm = 7.87 inches (approximately)
Why Convert 20cm to Inches?
Understanding measurement conversions is useful in various fields, including:
- Fashion & Clothing: Many international clothing sizes use inches, making conversions necessary for tailoring and shopping.
- Construction & DIY Projects: If you’re working with materials and measurements, knowing how to switch between units is crucial.
- Academic & Scientific Use: Many educational curriculums require conversions between metric and imperial units.
- E-commerce & Business: Product dimensions are often listed in different units, making conversions essential for accurate comparisons.
Step-by-Step Guide to Convert 20cm to Inches
- Understand the Conversion Factor: As stated earlier, 1 cm equals 0.393701 inches.
- Multiply the Centimeters by 0.393701:
- Round Off (if needed): The result can be rounded to 7.87 inches for simplicity.
Quick Reference Chart for CM to Inches
| Centimeters (cm) | Inches (in) |
|---|---|
| 10 cm | 3.94 in |
| 20 cm | 7.87 in |
| 30 cm | 11.81 in |
| 40 cm | 15.75 in |
| 50 cm | 19.69 in |
Common Items That Are Around 20cm in Length
To visualize how long 20cm is, here are some common objects that measure approximately the same:
- A standard pencil is around 19 cm to 20 cm in length.
- A smartphone is usually between 14 cm to 18 cm, making 20cm slightly longer than most models.
- A paperback book is often around 20 cm tall.
How to Convert Inches Back to Centimeters
If you ever need to reverse the conversion, use this formula:
For example, if you want to convert 7.87 inches back to centimeters:
Conclusion
Now that you know how to convert 20cm to inches (which equals approximately 7.87 inches), you can easily apply this knowledge in your daily life. Whether for shopping, construction, or academic purposes, understanding conversions helps make accurate decisions. Bookmark this guide for future reference, and never struggle with metric-to-imperial conversions again!
FAQs
Q: What is 20cm in inches exactly?
A: 20cm is exactly 7.87402 inches, but it is commonly rounded to 7.87 inches.
Q: How many inches is 20cm in feet and inches?
A: 20cm is approximately 0 feet 7.87 inches.
Q: Can I use a calculator to convert 20cm to inches?
A: Yes! Simply multiply 20 by 0.393701 to get the result.
Q: Why do we use 2.54 to convert inches back to cm?
A: 1 inch is defined as 2.54 cm, so multiplying by 2.54 gives the equivalent measurement in cm.
