Laptop Size Calculator
Enter the screen size in inches, the aspect ratio and the bezel width. The calculator works out the screen width and height, an estimate of the laptop's body size and the inside size of sleeve or bag to look for.
- Laptop size
- Screen width and height
- Sleeve size
Most laptops now use 16:10. Older and budget models are often 16:9.
Screen size is the diagonal, so the shape decides the width. A 14 in 16:10 screen is about 30.2 cm wide and 18.8 cm tall. With slim bezels the laptop is about 31.4 × 21.9 cm, so look for a sleeve at least 33 × 23.5 cm inside.
Laptop size chart
16:10, slim bezels. Search for a screen.
| Screen (in) | Width (cm) | Depth (cm) | Sleeve (cm) |
|---|---|---|---|
| 11.6 | 26.2 | 18.7 | 27.7 × 20.2 |
| 12.4 | 27.9 | 19.8 | 29.4 × 21.3 |
| 13.3 | 29.8 | 21 | 31.3 × 22.5 |
| 13.6 | 30.5 | 21.4 | 32.0 × 22.9 |
| 14 | 31.4 | 21.9 | 32.9 × 23.4 |
| 15.3 | 34.2 | 23.7 | 35.7 × 25.2 |
| 16 | 35.7 | 24.6 | 37.2 × 26.1 |
| 17.3 | 38.5 | 26.4 | 40.0 × 27.9 |
| 18 | 40 | 27.3 | 41.5 × 28.8 |
Approximate body size.
Screen size and laptop
16:10, slim bezels. Slide the screen size.
The laptop is drawn with its screen.
How to find a laptop size
Screen to body. Step through it.
Diagonal
Screen size.
Check the maker's exact dimensions before buying a snug sleeve.
16:9, 16:10 or 3:2
Screen shapes. Compare them.
Wide.
Balanced.
Tall.
Taller screens show more of a document but make the laptop deeper.
Before you buy a sleeve
Laptop checks. Tick each item.
Tick each item as you go.
A sleeve that is too loose lets the laptop slide and knock on its corners.
What you get
Laptop sizing. Each tile explains one result.
Size.
Width.
Height.
Inside size.
Screen.
Laptop screen size is measured across the visible screen, not the body.
Frequently Asked Questions
No question matches that search.
How big is a fourteen inch laptop?
About thirty-one by twenty-two centimetres for a modern slim model.
Is laptop size the screen or the body?
The screen diagonal. The body is a little bigger.
What size sleeve do I need?
About one to two centimetres bigger than the laptop each way.
How wide is a fifteen point six inch laptop?
About thirty-six centimetres.
What is the most common aspect ratio now?
Sixteen by ten on many new laptops.
Does a fifteen inch bag fit a fourteen inch laptop?
Yes, but it may be loose.
How do I measure my laptop?
Measure the closed laptop's width, depth and thickness.
Size it right
Know your laptop's real size from the screen and buy a bag or sleeve that fits snugly.
More size calculators
Each one has its own calculator, worked examples and answers to common questions.