Articles and guides on inches, centimeters and everyday sizes
Practical articles on measuring and converting sizes. Every number comes from the same exact conversion engine as the calculators (1 inch = 2.54 cm), and every guide links to the tool that does the sum for you.
Paper and photo sizes
Fractions and tool sizes
- Drill bit sizes: mm to fractional inches, and what is close enough Which fractional inch drill bit matches a 6 mm or 8 mm hole? A computed mm to inch chart, the error of each nearest bit, and when a swap is safe.
- Socket and wrench sizes: mm to inches, and which swaps round a bolt Is a 13 mm socket the same as 1/2 inch? A computed mm to inch chart of wrench sizes, the pairs that nearly match, and why a loose fit rounds bolt heads.
- How to read a tape measure in inches, and turn the reading into mm Learn to read every tick on an inch tape measure, then convert the reading to mm or cm with exact tables, worked readings and a dual-scale guide.
Height and feet-inches
- Height chart: feet and inches to cm, from 4′8″ to 6′6″ Convert height from feet and inches to cm with a full chart from 4 ft 8 in to 6 ft 6 in, plus a cm to feet chart and the formula to do it by hand.
- CM to feet and inches cheat sheet: every height from 140 to 200 cm Every whole centimeter from 140 to 200 cm in feet and inches, rounded to the nearest inch, with the exact value and how to read it quickly.
- How to measure your height accurately at home, in cm and feet-inches Step-by-step way to measure height at home against a wall, how to read the tape in cm or inches, and how to convert and round the result.
Screen sizes
- Laptop screen sizes in cm: real width and height of 13 to 17 inch screens How wide and tall is a 13, 14, 15.6 or 16 inch laptop screen in cm? Panel width and height for 16:9, 16:10 and 3:2 screens, and what it means for bags.
- Monitor sizes in cm: 24, 27 and 32 inch widths and desk space How wide is a 24, 27 or 32 inch monitor in cm? Panel widths, ultrawide 34 and 49 inch sizes, desk width for dual setups and a viewing distance table.
- Phone and tablet screen sizes in cm: width, height and what fits How big is a 6.1, 6.7 or 6.9 inch phone screen in cm? Panel width and height for phones and 8 to 13 inch tablets, plus what screen size says about a case.
TV sizes in cm
- How to measure a TV screen size: diagonal, width and height A 55 inch TV is not 55 inches wide
- TV viewing distance: how far to sit for every screen size Work out how far to sit from a 43 to 85 inch TV in meters, and which TV size fits the distance from your sofa, using the viewing-angle method.
- How wide should a TV stand be? Width in cm for every TV size Find the minimum TV stand or cabinet width in cm for 32 to 85 inch TVs, plus wall-mount space, foot spacing and the clearance rules most people forget.
- What height to mount a TV on the wall (in cm, by TV size) Where to place a wall-mounted TV: the center height, bottom edge and top edge in cm for 43 to 85 inch TVs, plus space for brackets and soundbars.
- 75 and 85 inch TV size in cm: width, height and the space you need A 75 inch TV is 166 cm wide and an 85 inch TV 188 cm wide
- Black Friday 2026 TV size guide: what 55, 65 and 75 inches mean in cm Shopping for a TV before Black Friday on 27 November 2026? See what 43, 55, 65 and 75 inch TVs measure in cm, and a checklist to avoid buying a set that does not fit.
Size guides and converters
Size guides in inches and centimeters · Inches to cm converter · Centimeters to inches Converter · Inches to cm chart (with fractions) · Photo and paper sizes in cm · How to convert inches to centimeters – and read a tape measure