This glove size calculator does one thing: it takes the circumference of your palm and finds the nearest row on a real, named, published size chart. The chart it uses is the one Ansell publishes for its own gloves, which maps numeric sizes 5 to 12 onto palm circumferences from 137 mm to 295 mm and gives the matching letter sizes from XXS to XXXL. Nothing on this page is invented. If a size system could not be traced to a source, it is not here at all.
That sounds like a small distinction until you compare sizing pages. Most of them present a table with no attribution, and the numbers drift between sites because each one copied the last. Arb Digital builds free tools that name their source, and on a page whose entire output is a lookup, the source is the tool. Everything else is arithmetic you could do on paper.
What This Calculator Does
It converts your measurement into millimetres, compares it against the eight rows of the published chart, and reports the nearest row along with the letter size that row carries. It also tells you how far your hand is from that row in millimetres, which is the number that actually matters. A hand 2 mm from a chart row will almost certainly fit that size. A hand sitting 13 mm between two rows is a hand that will find both sizes imperfect, and knowing that in advance saves a return.
The bar display shows every row of the chart at once with your measurement marked against it, so you can see where you sit rather than trusting a single word. If your palm falls outside the range the chart covers — below 137 mm or above 295 mm — the tool says so instead of extrapolating a size that the manufacturer does not make.
It is a companion to the other sizing tools here rather than an overlap with them. The shoe size converter moves between US, UK and EU foot sizing, the clothing size converter handles garment labels, and the ring size converter deals with finger circumference. None of them touch hands, and this page touches nothing but hands.
How to Use It
- Choose your units. Centimetres, inches or millimetres — the tool converts everything to millimetres because that is the unit the published chart uses.
- Measure the palm circumference. Around the widest part, below the knuckles, thumb excluded. A dressmaker’s cloth tape is far better than a rigid steel rule here.
- Measure your dominant hand. For most people it is measurably larger, and a glove that fits the larger hand can be lived with on the smaller one.
- Add hand length if you have it. It is reported back for cross-checking against a maker’s own chart, which may list both dimensions.
- Set your fit preference if your measurement falls between two rows, then read both the size and the millimetre gap before you buy.
The Chart This Page Uses, and Where It Comes From
Ansell’s published sizing chart gives eight rows. Size 5 is XXS at 137 mm, size 6 is XS at 152 mm, size 7 is S at 178 mm, size 8 is M at 203 mm, size 9 is L at 229 mm, size 10 is XL at 254 mm, size 11 is XXL at 279 mm, and size 12 is XXXL at 295 mm. The chart itself carries the note that it is intended as a guide, and this page repeats that rather than hiding it.
The numeric sizes are not arbitrary. Divide each figure by 25.4 and you get almost exactly the size number: 178 mm is 7.01 inches for size 7, 203 mm is 7.99 inches for size 8, 229 mm is 9.02 inches for size 9, and 254 mm is exactly 10 inches for size 10. The industrial glove size number is, to a very close approximation, palm circumference in inches. That is why the tool prints your measurement in inches next to the size: on the middle of the range the two numbers should agree.
Worked example, which you can check by hand. A 22 cm palm is 220 mm, or 8.66 inches. The two nearest chart rows are size 8 at 203 mm and size 9 at 229 mm. The gaps are 17 mm and 9 mm, so the nearest row is size 9, letter size L, and the tool reports a 9 mm distance to it. Notice that the inches figure, 8.66, sits between the two size numbers exactly as the millimetre comparison does — the two routes agree, which is the check that tells you the chart and the inch rule are the same rule.
Why Hand Length Does Not Choose the Size Here
The international standard for protective gloves, ISO 21420, defines a sizing system in its Annex B based on both hand circumference and hand length, covering sizes 4 to 13. It would be reasonable to expect a two-dimensional lookup. The complication is that the 2020 revision changed what the standard requires: as the testing house SATRA sets out in its summary of EN ISO 21420, the standard no longer publishes a list of minimum glove lengths for each size, leaving that to product-specific standards where it matters.
So there is a circumference chart this page can point you at and stand behind, and there is a length dimension that no longer maps to a single published number. Rather than invent a length band, the tool takes your length, converts it, and hands it back for you to compare against whatever chart your intended maker publishes. That is less satisfying than a second lookup and considerably more honest.
Length still matters in practice. Two people with identical palm circumference and a two-centimetre difference in finger length will not get on with the same glove. If your fingers are long relative to your palm, expect the fingertips to feel tight in the size the circumference chart gives you, and look for makers who publish a long or short variant.
What Changes the Answer After You Have the Number
Glove type is the biggest factor the chart cannot see. A thin nitrile disposable is meant to be close to the skin and unlined; a leather rigger’s glove has a stiff shell that has to be broken in; an insulated winter glove has bulk on the inside that eats a size or more. Wearing a liner underneath is the clearest case where the fit preference above should be set to roomier, because the liner is a real thickness the chart never accounted for.
Cut and construction matter too. A gunn-cut glove and a clute-cut glove of the same nominal size fit differently across the palm. Gloves with a keystone thumb sit differently from those with a wing thumb. Knitted gloves stretch, so a knit size 9 spans a range that a leather size 9 does not, and knits also lose that stretch as they age.
Then there is what the glove is for. A tight glove that restricts blood flow is a problem on a long shift, and a loose glove that can be snagged or drawn into a rotating machine is a different and more serious problem. A glove that is too big also destroys dexterity, which is exactly what most protective glove standards test for. Fit is a safety attribute of a protective glove, not a comfort preference, and this page sizes a hand rather than approving a glove for a task.
Why Two Gloves Marked the Same Size Are Not the Same Size
There is no global enforcement that a size 9 must fit a 229 mm hand. Manufacturers publish their own charts and cut to their own lasts, and the tolerances between them are wide. Sports and fashion gloves are worse than industrial ones: a cycling glove, a ski glove and a work glove marked large can differ by two centimetres of palm circumference. Sizing that runs by letter alone, with no millimetre figure attached, is the least reliable of all, because the letter is doing no measuring.
The practical move is to treat the number this page gives you as your baseline, then check it against the specific maker’s chart every time. If a product listing gives no chart at all, you are guessing, and the size on the label is not evidence. Our length converter is useful when a maker publishes only inches and your tape reads centimetres, and the rounding calculator is worth a look if you want to understand exactly how a measurement gets snapped to the nearest published step.
Arb Digital builds calculators that name where every number came from and refuse to guess the rest. Browse the library, or tell us which page your customers keep getting wrong.
Browse Free Tools Talk To Arb DigitalCommon Mistakes to Avoid
- Measuring over the thumb. The published chart measures palm circumference with the thumb outside the loop. Including it adds two to three centimetres and pushes you a full size up.
- Pulling the tape tight. A cloth tape drawn hard compresses the hand. Snug and level is the measurement the chart expects.
- Measuring the smaller hand. Most people are asymmetric. Size to the dominant hand and accept a little slack on the other.
- Assuming a letter size travels. A large from one maker is not a large from another. The millimetre figure travels; the letter does not.
- Ignoring what goes under the glove. A liner, a bandage or a cold-weather insert is real thickness, and the chart knows nothing about it.
Related Free Tools From Arb Digital
Size feet rather than hands with the shoe size converter, move between garment labelling systems with the clothing size converter, get finger circumference right with the ring size converter, switch between metric and imperial tape readings with the length converter, and see how a measurement gets snapped to a published step with the rounding calculator. The rest of the library is in the free online tools hub.
Frequently Asked Questions
From the sizing chart Ansell publishes for its own gloves, which maps numeric sizes 5 to 12 onto palm circumferences of 137 mm to 295 mm with matching letter sizes from XXS to XXXL. No table on this page was invented, and the chart itself is described by its publisher as a guide.
Wrap a cloth tape around the widest part of your palm, just below the knuckles, with your thumb left outside the loop. Keep the tape snug but not tight. Measure your dominant hand, which for most people is the larger of the two.
Very nearly, across the middle of the range. On the published chart, size 7 is 178 mm or 7.01 inches, size 8 is 203 mm or 7.99 inches, and size 10 is 254 mm or exactly 10 inches. The tool prints your measurement in inches so you can see the two agree.
Because there is no longer a single published length figure to look it up against. ISO 21420 defines sizing on circumference and length, but the 2020 revision removed the list of minimum glove lengths per size. Rather than invent a band, the tool reports your length back for comparison against your maker’s own chart.
The tool shows you the gap in millimetres to both rows so you can see how close the call is, and the fit preference selector lets you choose the smaller or larger row. A hand sitting midway between rows will find both sizes imperfect, and knowing that before you order is the point.
Usually yes, because a liner or insulation is a real thickness that a bare-hand chart never accounted for. Set the fit preference to roomier, and check whether the maker states that a particular model already runs generous for that reason.
Because nothing forces makers to cut to the same last. Charts, patterns and tolerances differ, and sports and fashion gloves vary far more than industrial ones. The millimetre figure travels between brands; the letter on the label does not.
Yes. A glove that is too tight restricts circulation over a long period, and one that is too loose reduces dexterity and can be caught by rotating machinery. Fit is treated as a performance attribute of protective gloves, which is why standards test dexterity at all.
This page finds the nearest row on one manufacturer’s published chart and does not certify any glove for any task. Sizing varies between brands and the maker’s own chart always wins. Where gloves are used as protective equipment, the selection, specification and fit for a particular hazard are matters for your employer’s risk assessment and the relevant product standard, not for a general sizing page.
