21 inches (Aspect ratio 5:4), tv & monitor size

Type the number of 21 inches you want to convert in the text box, to see the results in the table.

Aspect ratio 4:3 14 inches 15 inches 17 inches 19 inches 20 inches 21 inches 24 inches   Aspect ratio 5:4 17 inches 19 inches 20 inches 21 inches 24 inches   Aspect ratio 16:9 17 inches 19 inches 20 inches 21 inches 24 inches 32 inches   Aspect ratio 16:10 17 inches 19 inches 20 inches 21 inches 25 inches   Metric Kilometre (km) Metre (m) Decimetre (dm) Centimetre (cm) Millimetre (mm) Micrometre (µm) Nanometre (nm) Angstrom (Å)   British/American League Mile (mi) Furlong Chain Rod (rd) Yard (yd) Foot (ft) Link Hand Inch (in) Line Mil (mil) Thou (thou)   Nautical Nautical mile Fathom   Astronomical Parsec (pc) Light year Astronomical unit (AE) Light minute Light second Aspect ratio 4:3 14 inches 15 inches 17 inches 19 inches 20 inches 21 inches 24 inches   Aspect ratio 5:4 17 inches 19 inches 20 inches 21 inches 24 inches   Aspect ratio 16:9 17 inches 19 inches 20 inches 21 inches 24 inches 32 inches   Aspect ratio 16:10 17 inches 19 inches 20 inches 21 inches 25 inches 0 decimals 1 decimals 2 decimals