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Chapter 4.4Field manual No. 04 · Sizing & Fit

A0 Gi Size: Height, Weight and Who It Fits

By All Around2 min readUpdated

Short answer: A0 fits 152–163 cm (5′0″–5′4″) and 50–64 kg (110–141 lb). A plain A-size, no cut applied. It is the smallest adult size we cut; below it the kids M-series takes over.

A0 against its neighbours

SizeCutHeightWeight
A0Standard152–163 cm50–64 kg
A0FFitted152–163 cm45–57 kg
A0WWide152–163 cm54–75 kg
A1Standard163–173 cm64–75 kg
Height
A0
A0F
A0W
A1
150 cm175 cm
Weight
A0
A0F
A0W
A1
43 kg77 kg
Where these sizes start, stop and overlap. Bands that share a weight range but not a height range are the ones people get wrong.

How to know it's you

A0 is where adult sizing starts. If it still hangs off you, you are not looking for a smaller A-size — you are looking at the Fitted cut, or at the kids M-series if this is for a child.

Is A0 you?

Two numbers and we’ll tell you straight, including when the answer is a different size.

The finished gi, measured flat

Wingspan is cuff to cuff, jacket length is collar to hem, chest is laid flat. These are the numbers the size is cut to, not an estimate from the chart.

MeasurementA0A0FA0WA1
Jacket wingspan150 cm150 cm—162 cm
Jacket length71 cm71 cm—76 cm
Jacket chest48 cm44 cm—54 cm
Trouser length92 cm92 cm—94 cm
Trouser waist50 cm42 cm—54 cm

If A0 is not quite it

A1 is the only step available in this cut. If the problem is that one half of you is a different size from the other, order it that way: a jacket in one size and trousers in another is a normal order here. About one gi in ten we shipped between 31 July and 29 September 2026 went out that way, and the mixed-size gi guide shows how to pick the pair.

And if no combination on the chart works, custom sizing is $189 and is cut to your measurements.

Size has nothing to do with legality, but fit does. The IBJJF measures sleeve and trouser length against your wrist and ankle with the arm extended, and a gi that is too short fails at weigh-in. The full requirements cover colour, fabric and the measurement rules.

Frequently asked questions

What height and weight is a A0 gi?

152–163 cm (5′0″ to 5′4″) and 50–64 kg (110–141 lb) on the All Around chart.

What are the measurements of a A0 gi?

Jacket: 150 cm wingspan cuff to cuff, 71 cm collar to hem, 48 cm chest laid flat. Trousers: 92 cm long with a 50 cm waist. Measured on the finished garment.

Can I order a A0 jacket with different trousers?

Yes. All Around gis can be ordered with the jacket and trousers in different sizes — pick “Mixed / Women sizes” on the gi page and write both sizes in. About one gi in ten we shipped between 31 July and 29 September 2026 was ordered this way.

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PrintableGi size chartA4 / Letter · print or save as PDF
  1. 04BJJ Gi Size Chart & Calculator: Find Your Fit by Height & WeightVol. 04 · 5 min
  2. 04A1L Gi Size: Who It Fits and How It Differs from A1Vol. 04 · 6 min
  3. 03How to Choose a BJJ Gi: Fit, Weave and GSM, Explained for BeginnersVol. 03 · 7 min
  4. 02IBJJF Gi Requirements: Is Your Gi Competition-Legal?Vol. 02 · 6 min