Body & Fit

Activewear Size Calculator: Gym Tights, Sports Tops, Joggers and Shorts

Free tool · Updated October 2, 2026 · By CouponTalk

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Your result

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Quick answer

Size activewear tops by bust or chest and bottoms by waist and hips. Compression tights and tops should feel firm all over without pinching; if you are between sizes, choose the smaller size for a compression fit and the larger for a relaxed fit. A women's 30-inch waist with 39-inch hips is size M in tights; a men's 40-inch chest is size L in tops.

How to measure

  1. Measure bust or chest, waist and hips.
  2. Choose what you are buying and whether you want compression.
  3. Use the size shown; for between sizes, the calculator applies the compression rule.

Activewear & Gym Wear Size Chart

Activewear size chart (upper limits)
SizeWomen: bust / waist / hipsMen: chestMen: waist
XS32 / 26 / 35"33–35"28"
S34 / 28 / 37"35–37"30"
M36 / 30 / 39"37–39"32"
L38 / 32 / 41"39–41"34"
XL40 / 34 / 43"41–43"36"
XXL42 / 36 / 45"43–45"38"

Stretch and fit vary by fabric. Read the brand chart for compression lines.

Frequently asked questions

Should gym leggings be squat-proof?
Yes. Check the fabric does not turn see-through when you bend. Thicker fabric (220+ GSM) and the right size help.
Do I size down for compression wear?
Only if you are between sizes. Sizing down more than one size restricts blood flow and movement.
Are track pants sized by waist?
Yes, with a drawstring, so if you are between sizes the larger one is fine.

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