ノートパソコンの画面サイズと本体外寸の測り方
画面サイズはベゼル（枠）を除いた表示領域の対角線をインチ単位で測ります。
⚡ノートパソコンの画面サイズと本体外寸の測り方 Calculator
Live Interactiveノートパソコンの画面サイズと本体外寸の測り方 — Step-by-Step Reference
ノートPCの画面サイズ（対角線インチ）と本体寸法の測り方。ケースやリュックへの収納判定。
US Imperial Standard
Standard fractions divided into 1/16", 1/8", 1/4", and 1/2" increments with exact decimal benchmarks.
Metric SI Equivalence
Millimeter and centimeter precision calculated using exact 25.40 mm per international inch conversion.
ノートパソコンの画面サイズと本体外寸の測り方 FAQ
How do I measure a laptop screen size?
Measure diagonally from one corner of the visible screen to the opposite corner, not including the bezel. The result in inches (for example 15.6) is the advertised screen size.
Is screen size the same as laptop size?
No. Screen size is only the display diagonal. The laptop body is larger and depends on bezel thickness and design, so two 15.6 inch laptops can have different widths and depths.
How do I measure a laptop for a case or sleeve?
Close the laptop and measure its width, depth and thickness. Choose a case or sleeve whose inside size is just slightly larger than those numbers. Matching only the screen size is not enough.
How do I calculate screen size from width and height?
Use the Pythagorean theorem: diagonal = square root of (width squared + height squared). Measure the screen's width and height in inches, then enter them in the calculator above.
How do I know if my laptop will fit in a bag or backpack?
Compare your laptop's closed width, depth and thickness with the compartment's inside dimensions. Use the Will It Fit checker above.