Estimate your gym shirt fit in under 30 seconds.
Use body size and fit preference to get a quick starting point for compression, regular, or oversized pump-cover shirts. No account is required for this calculator.
Calculator inputs
Regular fit recommendation for an average-height lifter around 185 lb.
Confidence: medium — verify against a real size chart before purchase.
How this size estimate works
The calculator starts with a weight-based size band, then adjusts for height, fit preference, and optional chest measurement. Taller or broader users may be nudged up a size; compression fit nudges down.
This is useful for a fast first answer on simple apparel tools, but it is not calibrated to any one blank or brand. Sizing varies by brand, fabric blend, cut, and shrinkage, so treat the result as a starting point and confirm against the product's own size chart before ordering.
This page runs entirely in your browser. No signup is required, and basic input values are not submitted anywhere by this static version.
Before you order
FAQ
Should I size up for a pump cover?
Usually yes. Oversized fits intentionally add room in the chest, torso, and sleeves.
What if I am between sizes?
Use the exact chest measurement and compare it to the product chart. If still unsure, decide whether you prefer a tighter or looser fit.
Does this work for women's cuts?
Not reliably. Women's cuts often use different block shapes and should have a separate calculator.