Mouse size chart by hand length: what size mouse fits your hand?
The first thing that decides whether a mouse fits is its length. Measure your hand, then look up your grip.
Measure your hand first
- Hand length: from the crease at your wrist to the tip of your middle finger.
- Hand width: across the knuckles at the base of your four fingers, the widest part of the palm.
Hand length chart
Palmate takes a share of your hand length as the ideal mouse length: 66% for a palm grip, 62% for claw and 58% for fingertip. A palm grip, with the whole hand on the mouse, needs the longest mouse; a fingertip grip the shortest.
| Hand length | Palm | Claw | Fingertip |
|---|---|---|---|
| 16.0 cm | 106 mm | 99 mm | 93 mm |
| 16.5 cm | 109 mm | 102 mm | 96 mm |
| 17.0 cm | 112 mm | 105 mm | 99 mm |
| 17.5 cm | 116 mm | 109 mm | 102 mm |
| 18.0 cm | 119 mm | 112 mm | 104 mm |
| 18.5 cm | 122 mm | 115 mm | 107 mm |
| 19.0 cm | 125 mm | 118 mm | 110 mm |
| 19.5 cm | 129 mm | 121 mm | 113 mm |
| 20.0 cm | 132 mm | 124 mm | 116 mm |
| 20.5 cm | 135 mm | 127 mm | 119 mm |
| 21.0 cm | 139 mm | 130 mm | 122 mm |
These ratios are provisional and will be tuned from user feedback; the chart follows the numbers in the code automatically.
Width matters too
After length, grip width is the next most important part. Palmate takes 88% of your hand width as the ideal grip width: too wide spreads the hand, too narrow leaves less to push against.
How are small, medium and large mice told apart?
Palmate computes size from length and width: length first, plus 0.4 mm for every millimetre of width above 64 mm, minus as much for every millimetre below. A result below 117 is a small mouse, 117 to 124 medium, and above 124 large.
- Small: 81 mice listed, median length 114.5 mm.
- Medium: 160 mice listed, median length 120 mm.
- Large: 167 mice listed, median length 127 mm.
After the chart
Length is one of six parts we compare. Scan your hand and Palmate adds grip width, height and hump, front width, thumb rest and weight, and ranks every mouse.