SpecWiseGuide

Laptop sizes: what 13, 14, 15 and 16 inches really measure

By SMART SC Editorial Team · Updated · How we research

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ThinkPad T16 Gen 5ThinkPad T14 Gen 7US Letter sheet, 11 × 8.5 inThinkPad T16 Gen 5: 14.09 in wide9.76 in
Footprints to the same scale, lid closed: ThinkPad T14 Gen 7 (Intel) 12.35 × 8.73 in; ThinkPad T16 Gen 5 (Intel) 14.09 × 9.76 in, over a US Letter sheet (11 × 8.5 in).

Short answer

A laptop’s size is the diagonal of its screen, not the width of the machine. Among the current models we list, 14-inch laptops are 12.19–12.57 in wide and 8.26–8.98 in deep and weigh 2.15–3.4 lb; 16-inch laptops are 13.88–14.35 in wide and 9.35–10.86 in deep and weigh 3.58–5.84 lb. The 15-inch class sits between at 13.4–14.11 in wide. Two laptops of the same size can differ by more than an inch in depth and by several pounds, so check the model’s own numbers before buying a bag or planning a desk.

Key takeaways

  • 14-inch: 12.19–12.57 in wide, 2.15–3.4 lb. The size for carrying every day.
  • 16-inch: 13.88–14.35 in wide, 3.58–5.84 lb. About 31% more screen than a 14-inch at the same 16:10 shape.
  • The class name is rounded: “15-inch” covers 15.3 and 15.6 in screens, “13-inch” covers 13.0 and 13.6 in.
  • Gaming chassis are the deep, heavy end of each size.

Laptop listings lead with one number, the screen size, and leave out the three you need for a bag, a desk or an airline tray: width, depth and weight. This page gives those for every current laptop in our catalogue, re-typed from each maker’s own specification document.

Size means the screen diagonal

A “14-inch laptop” has a screen that measures 14 inches corner to corner. The body around it is wider and deeper by the frame, the hinge and whatever cooling sits behind the screen.

The screen’s shape matters too. Most current laptops use a 16:10 screen, which is taller than the older 16:9 shape. At 16:10, the geometry works out to:

Screen Width Height Area
14.0 in 11.9 in 7.4 in 88 sq in
15.3 in 13.0 in 8.1 in 105 sq in
16.0 in 13.6 in 8.5 in 115 sq in

A 16-inch screen has about 31% more area than a 14-inch one. That is the real difference between the two sizes; the two inches of diagonal undersell it.

ThinkPad T16 Gen 5IdeaPad Slim 3i 15ThinkPad T14 Gen 7MacBook Air 13 (M5)US Letter sheet, 11 × 8.5 inThinkPad T16 Gen 5: 14.09 in wide9.76 in
Footprints to the same scale, lid closed: MacBook Air 13 (M5) 11.97 × 8.46 in; ThinkPad T14 Gen 7 (Intel) 12.35 × 8.73 in; IdeaPad Slim 3i 15 13.52 × 9.51 in; ThinkPad T16 Gen 5 (Intel) 14.09 × 9.76 in, over a US Letter sheet (11 × 8.5 in).

Real dimensions by size class

Ranges across the laptops we list (29 chassis so far):

Class Laptops listed Width Depth Thickness Starting weight
13-inch 2 11.71–11.97 in 8.12–8.46 in 0.44–0.5 in 2.7 lb
14-inch 10 12.19–12.57 in 8.26–8.98 in 0.3–0.8 in 2.15–3.4 lb
15-inch 5 13.4–14.11 in 9.27–10.03 in 0.45–0.92 in 3.28–4.6 lb
16-inch 12 13.88–14.35 in 9.35–10.86 in 0.43–1.21 in 3.58–5.84 lb

The 13-inch row is Apple only for now (MacBook Neo and MacBook Air), and we list no 17- or 18-inch chassis yet. Ranges will widen as more brands are added.

Every 16-inch laptop we list is wider than every 14-inch one, but the classes overlap in weight: the lightest 16-inch models weigh less than the heaviest 14-inch ones.

Every laptop, narrowest first

Show
Closed-lid dimensions of the 29 laptops we list, narrowest first. Thickness is front–rear or thinnest–thickest where the maker gives two figures.
LaptopSizeScreenWidthDepthThicknessWeight (starting)FootprintCheck price
MacBook Neo Apple · 202613 in13 in11.71 in (29.7 cm)8.12 in (20.6 cm)0.5 in2.7 lb95 sq inAmazon
MacBook Air 13 (M5) Apple · 202613 in13.6 in11.97 in (30.4 cm)8.46 in (21.5 cm)0.44 in2.7 lb101 sq inAmazon
Dell XPS 14 (2026) Dell · 202614 in14 in12.19 in (31.0 cm)8.26 in (21.0 cm)0.58–0.6 in3 lb101 sq inAmazon
ASUS Zenbook A14 ASUS · 202614 in14 in12.23 in (31.1 cm)8.42 in (21.4 cm)0.53–0.63 in2.16 lb103 sq inAmazon
ThinkPad X1 Carbon Gen 14 Lenovo · 202614 in14 in12.3 in (31.2 cm)8.49 in (21.6 cm)0.3–0.56 in2.15 lb104 sq inAmazon
Yoga Slim 7 Ultra 14 Lenovo · 202614 in14 in12.31 in (31.3 cm)8.42 in (21.4 cm)0.55 in2.15 lb104 sq inAmazon
MacBook Pro 14 Apple · 202614 in14.2 in12.31 in (31.3 cm)8.71 in (22.1 cm)0.61 in3.4 lb107 sq inAmazon
ThinkPad E14 Gen 8 (Intel) Lenovo · 202614 in14 in12.32 in (31.3 cm)8.67 in (22.0 cm)0.4–0.6 in2.95 lb107 sq inAmazon
ThinkPad T14 Gen 7 (Intel) Lenovo · 202614 in14 in12.35 in (31.4 cm)8.73 in (22.2 cm)0.44–0.63 in2.8 lb108 sq inAmazon
Dell Pro 14 Dell · 202514 in14 in12.35 in (31.4 cm)8.87 in (22.5 cm)0.74–0.8 in2.97 lb110 sq inAmazon
Yoga 7 2-in-1 14 (Intel) Lenovo · 202614 in14 in12.48 in (31.7 cm)8.98 in (22.8 cm)0.61 in3.04 lb112 sq inAmazon
Lenovo Chromebook m 14 Lenovo · 202614 in14 in12.57 in (31.9 cm)8.79 in (22.3 cm)0.78 in2.99 lb110 sq inAmazon
MacBook Air 15 (M5) Apple · 202615 in15.3 in13.4 in (34.0 cm)9.35 in (23.7 cm)0.45 in3.3 lb125 sq inAmazon
IdeaPad Slim 3i 15 Lenovo · 202615 in15.3 in13.52 in (34.3 cm)9.51 in (24.2 cm)0.67–0.7 in3.28 lb129 sq inAmazon
Legion 5 15 (Intel) Lenovo · 202615 in15.3 in13.54 in (34.4 cm)9.63 in (24.5 cm)0.75–0.79 in4.25 lb130 sq inAmazon
LOQ Essential 15 (Intel) Lenovo · 202615 in15.3 in13.58 in (34.5 cm)10.03 in (25.5 cm)0.82–0.92 in4.6 lb136 sq inAmazon
Dell XPS 16 (2026) Dell · 202616 in16 in13.88 in (35.3 cm)9.35 in (23.7 cm)0.58–0.6 in3.65 lb130 sq inAmazon
ROG Zephyrus G16 (2026) ASUS · 202616 in16 in13.94 in (35.4 cm)9.69 in (24.6 cm)0.59–0.7 in4.3 lb135 sq inAmazon
ROG Strix G16 (2026) ASUS · 202616 in16 in13.94 in (35.4 cm)10.55 in (26.8 cm)0.9–1.21 in5.84 lb147 sq inAmazon
MacBook Pro 16 Apple · 202616 in16.2 in14.01 in (35.6 cm)9.77 in (24.8 cm)0.66 in4.7 lb137 sq inAmazon
IdeaPad Slim 5a 16 Lenovo · 202616 in16 in14.03 in (35.6 cm)9.87 in (25.1 cm)0.67 in3.64 lb138 sq inAmazon
Alienware 16 Aurora Dell · 202516 in16 in14.05 in (35.7 cm)10.45 in (26.5 cm)0.73–0.89 in5.49 lb147 sq inAmazon
Dell 16 Dell · 202516 in16 in14.06 in (35.7 cm)9.86 in (25.0 cm)0.65–0.72 in4.15 lb139 sq inAmazon
ASUS Vivobook S16 ASUS · 202616 in16 in14.06 in (35.7 cm)9.87 in (25.1 cm)0.63–0.7 in3.7 lb139 sq inAmazon
ThinkPad L16 Gen 3 (Intel) Lenovo · 202616 in16 in14.06 in (35.7 cm)9.98 in (25.3 cm)0.43–0.77 in4.08 lb140 sq inAmazon
ThinkPad T16 Gen 5 (Intel) Lenovo · 202616 in16 in14.09 in (35.8 cm)9.76 in (24.8 cm)0.45–0.72 in3.58 lb138 sq inAmazon
Dell 15 Dell · 202515 in15.6 in14.11 in (35.8 cm)9.27 in (23.5 cm)0.67–0.75 inup to 4.19 lb131 sq inAmazon
ThinkPad P16 Gen 3 Lenovo · 202516 in16 in14.25 in (36.2 cm)9.92 in (25.2 cm)0.62–0.82 in5.6 lb141 sq inAmazon
Legion Pro 7 16 (Intel) Lenovo · 202516 in16 in14.35 in (36.4 cm)10.86 in (27.6 cm)0.86–1.05 in5.67 lb156 sq inAmazon

What changes the size within a class

  • Cooling. Gaming laptops and workstations put heat pipes and vents behind the hinge. The 16-inch gaming chassis we list are 10.4 in deep or more, except the thin ROG Zephyrus G16; the other 16-inch models are all under 10 in.
  • Keyboard. A numeric keypad needs width. None of the 14-inch laptops we list has one.
  • Ports. A full-size Ethernet port sets a minimum thickness at the side of the chassis.
  • Battery and screen option. Makers quote a starting weight for the lightest configuration. A bigger battery or a touchscreen adds a few ounces.

Pages by size

14-inch laptop size: width, depth, thickness and weightA 14-inch laptop is about 12.2 to 12.6 in wide and 8.3 to 9 in deep. Real dimensions and weight of current 14-inch models, from the makers' documents.16-inch laptop size: width, depth, thickness and weightA 16-inch laptop is about 13.9 to 14.4 in wide and 9.4 to 10.9 in deep. Real dimensions and weight of current 16-inch models, from the makers' documents.14 vs 16-inch laptop: how much bigger, heavier and more useful?A 16-inch laptop has 31% more screen than a 14-inch, is about 1.7 in wider and weighs from under a pound to 3 lb more. Real figures from current models.The lightest laptops by screen size, from the makers' own weightsCurrent laptops sorted by starting weight, from the makers' documents: the lightest 14-inch models start at 2.15 lb, the lightest 16-inch at 3.58 lb.

We’ll add 13-, 15- and 17-inch pages when the catalogue holds enough chassis of each for the ranges to mean something.

Frequently asked questions

How is laptop size measured?

By the screen’s diagonal, corner to corner, in inches. It says nothing direct about the body: the 14-inch laptops we list are 12.19–12.57 in wide and 8.26–8.98 in deep.

What are the dimensions of a 14-inch laptop?

Among the current models we list: 12.19–12.57 in wide, 8.26–8.98 in deep, 0.3–0.8 in thick, and 2.15–3.4 lb. A 14-inch 16:10 screen itself is 11.9 × 7.4 in.

What are the dimensions of a 16-inch laptop?

Among the current models we list: 13.88–14.35 in wide, 9.35–10.86 in deep, 0.43–1.21 in thick, and 3.58–5.84 lb. A 16-inch 16:10 screen itself is 13.6 × 8.5 in.

Is a 15.6-inch laptop the same as a 15-inch?

They are sold in the same class, but the screens differ. A 15.6-inch screen is the older 16:9 shape; most new models in this class use a 15.3-inch 16:10 screen, which is taller and slightly narrower.

Will a 16-inch laptop fit in a backpack made for 15.6-inch laptops?

Often, but check the numbers. The 16-inch laptops we list are 13.88–14.35 in wide and 9.35–10.86 in deep; compare those with the compartment’s inner dimensions, since bag makers label by screen class.

Sources (27)

  1. Apple, MacBook Neo technical specifications
  2. Apple, MacBook Air (M5) technical specifications
  3. Dell XPS 14 DA14260 Setup and Specifications (dell.com/support)
  4. ASUS USA, Zenbook A14 (UX3407) tech specs
  5. Lenovo PSREF, ThinkPad X1 Carbon Gen 14 Aura Edition (November 10, 2026)
  6. Lenovo PSREF, Yoga Slim 7 Ultra 14IPH11 (October 28, 2026)
  7. Apple, MacBook Pro technical specifications
  8. Lenovo PSREF, ThinkPad E14 Gen 8 (Intel) (November 9, 2026)
  9. Lenovo PSREF, ThinkPad T14 Gen 7 (Intel) (November 10, 2026)
  10. Dell Pro 14 PC14250 Owner's Manual, Specifications (dell.com/support)
  11. Lenovo PSREF, Yoga 7 2-in-1 14IPH11 (October 28, 2026)
  12. Lenovo PSREF, Lenovo Chrome 14M8911 (September 21, 2026)
  13. Lenovo PSREF, IdeaPad Slim 3 15IPH11 (September 24, 2026)
  14. Lenovo PSREF, Legion 5 15IAX11 (July 27, 2026)
  15. Lenovo PSREF, LOQ 15IRH11E (September 29, 2026)
  16. Dell XPS 16 DA16260 Setup and Specifications (dell.com/support)
  17. ASUS ROG USA, Zephyrus G16 (2026) specs
  18. ASUS ROG USA, Strix G16 (2026) specs
  19. Lenovo PSREF, IdeaPad Slim 5 16AGP11 (September 24, 2026)
  20. Dell USA, Alienware 16 Aurora (AC16250) tech specs
  21. Dell 16 DC16250 Owner's Manual, Specifications (dell.com/support)
  22. ASUS USA, Vivobook S16 (S3607Q) tech specs
  23. Lenovo PSREF, ThinkPad L16 Gen 3 (Intel) (November 11, 2026)
  24. Lenovo PSREF, ThinkPad T16 Gen 5 (Intel) (November 10, 2026)
  25. Dell 15 DC15250 Owner's Manual, Specifications (dell.com/support)
  26. Lenovo PSREF, ThinkPad P16 Gen 3 (October 28, 2026)
  27. Lenovo PSREF, Legion Pro 7 16IAX10H (July 6, 2026)
14-inch laptop size: width, depth, thickness and weightA 14-inch laptop is about 12.2 to 12.6 in wide and 8.3 to 9 in deep. Real dimensions and weight of current 14-inch models, from the makers' documents.16-inch laptop size: width, depth, thickness and weightA 16-inch laptop is about 13.9 to 14.4 in wide and 9.4 to 10.9 in deep. Real dimensions and weight of current 16-inch models, from the makers' documents.14 vs 16-inch laptop: how much bigger, heavier and more useful?A 16-inch laptop has 31% more screen than a 14-inch, is about 1.7 in wider and weighs from under a pound to 3 lb more. Real figures from current models.The lightest laptops by screen size, from the makers' own weightsCurrent laptops sorted by starting weight, from the makers' documents: the lightest 14-inch models start at 2.15 lb, the lightest 16-inch at 3.58 lb.Every laptop we've catalogued: size, weight, ports and memory by modelWidth, depth, thickness, weight, numeric keypad, Ethernet, memory type and battery for every current laptop chassis we list, from the makers' own documents.Laptops with a numeric keypad, and 15- and 16-inch laptops without oneWhich current laptops have a number pad, checked against each maker's keyboard specification: 15- and 16-inch models with one, and the larger models without.