Here is the complete reference: size 3 measures 23-24 inches (58-61 cm) and weighs 300-320 grams; size 4 measures 25-26 inches (63.5-66 cm) and weighs 350-390 grams; size 5 measures 27-28 inches (68-70 cm) and weighs 410-450 grams. These are the numbers that actually matter when comparing product listings, verifying a manufacturer's spec sheet, or double-checking that a ball described as a certain size is genuinely within the expected range rather than just labeled that way.

The Complete Size Chart

Size	Circumference (in)	Circumference (cm)	Weight (g)	Weight (oz)	Typical Age
1 (mini)	~18-20	~46-51	~200-230	~7-8	Any age, novelty/skills
2	~20-22	~51-56	~250-280	~9-10	Any age, skills training
3	~23-24	~58-61	~300-320	~11	Roughly 4-8
4	~25-26	~63.5-66	~350-390	~12-14	Roughly 8-11
5	27-28	68-70	410-450	14-16	12 and up, adult

Note that size 5 is the only size with figures written directly into Law 2 of the Laws of the Game (IFAB's official rulebook) — its range is precise and codified. Sizes 1 through 4 are standardized by near-universal manufacturer and youth-league convention rather than a single international law, which is why you'll occasionally see very slightly different ranges quoted for smaller sizes across different sources. The figures above reflect the commonly accepted industry-standard ranges.

Why Some Sources Show Slightly Different Numbers

A buyer comparing multiple product listings sometimes notices minor variation — one size 4 ball listed at 62-64 cm, another at 63.5-66 cm. This isn't necessarily an error on either listing; it reflects the fact that youth sizes below size 5 aren't governed by one single, universally binding specification the way size 5 is under Law 2. Individual manufacturers and youth organizations have converged on very similar but not always byte-for-byte identical ranges. For genuinely regulation-critical purposes, always check your specific league's stated requirement rather than treating any single chart, including this one, as the absolute final word for sizes 1 through 4.

Weight: A Detail Worth Reading Closely

For size 5 specifically, the Laws of the Game state the weight requirement applies "at the start of the match" — a deliberate phrase acknowledging that a ball's actual weight can shift slightly during play, primarily through water absorption in wet conditions. A ball that's 440 grams and perfectly compliant at kickoff could legitimately weigh somewhat more by full time in heavy rain, particularly with older stitched construction that has more seam exposure than modern thermo-bonded builds. See our thermo-bonded construction guide for how modern seamless construction specifically addresses this.

Converting Between Units When Comparing International Listings

If you're sourcing from international manufacturers or comparing specs across regions, quick reference conversions help avoid errors:

• Circumference: 1 inch = 2.54 cm. A size 5 ball's 27-28 inch range converts to 68.6-71.1 cm — close to, though not perfectly identical to, the commonly cited 68-70 cm figure due to rounding conventions in how the original measurements were established.
• Weight: 1 ounce = 28.35 grams. Size 5's 14-16 oz range converts to approximately 397-454 grams, again close to but not perfectly identical to the commonly cited 410-450 gram figure, for the same rounding-convention reason.

These small discrepancies between the inch/ounce and cm/gram figures aren't errors — they reflect that the original specification and its commonly cited metric conversion were established somewhat independently over the sport's history, rather than one being a precise mathematical conversion of the other.

How This Chart Applies to Sourcing and Manufacturing

If you're buying in bulk or sourcing custom production, this chart is the starting reference point for a written specification — but a real manufacturing quote should confirm exact target figures within these ranges, plus the tolerance the factory's quality control actually holds to. A factory quoting "size 5, 410-450g" without further detail is less useful than one that specifies where within that range their standard production target sits, and what AQL (Acceptable Quality Limit) standard they inspect batches against before shipping. Our guide on choosing a soccer ball manufacturer covers exactly how to structure this conversation with a potential supplier.

Using This Chart to Spot a Mislabeled or Low-Quality Listing

A practical, defensive use of this reference: if you're buying online and a listing's stated weight or circumference for a given size falls meaningfully outside these ranges — not just a minor rounding difference, but a genuine outlier — that's worth treating as a signal to ask more questions before purchasing, particularly for a bulk order. It doesn't automatically mean the product is fraudulent, but a size 5 ball listed well outside 410-450 grams, for instance, is either mislabeled or represents a genuinely non-standard product that should be flagged and clarified before you commit to an order based on assumed compliance.

Related Reading

• Soccer Ball Sizes by Age: The Complete Chart
• Regulation Size Soccer Ball: What FIFA's Official Standards Require
• Standard Soccer Ball Size and Weight: What the Laws of the Game Really Say

Frequently Asked Questions

What is the exact weight range for a size 5 soccer ball?

410 to 450 grams (14 to 16 ounces), measured at the start of a match, per Law 2 of the Laws of the Game. This is the only size with a weight range written directly into IFAB's official rulebook — youth sizes follow similar figures by strong industry convention rather than a single codified international law.

Why do different product listings show slightly different measurements for the same size?

For size 5, this is usually just a rounding difference between the inch/ounce figures and their commonly cited metric conversions, which weren't established as a precise mathematical conversion of each other. For youth sizes (1 through 4), it more often reflects that those sizes are standardized by manufacturer and league convention rather than one single binding international specification, so minor variation between sources is normal and not necessarily an error.

Should I be concerned if a ball's actual measured weight differs slightly from its listed size range?

A small difference, particularly after the ball has been used in wet conditions, is normal and expected — weight can shift slightly during play due to water absorption. A significant, consistent deviation from the expected range for that size, especially on a brand-new, dry ball, is worth raising with the seller or manufacturer rather than assuming it's within normal variation.