First Order Calculator: Size Curve & Colour Split for Activewear
Build your first-order allocation
Why a wrong size curve costs you twice
The sizes you under-order sell out first — by definition your best sellers — while the sizes you over-order become dead inventory tying up the cash you needed for the reorder. One mistake, two bills. That asymmetry is why experienced brands treat curve-setting as risk management: start from a defensible baseline, shift only for reasons you can name, and let the reorder carry the precision a first order cannot.
The curves in this tool are common industry starting points, refined by your own sell-through after launch. The full reasoning — including when to shift the centre and how colour compounds with size — is in What Size Ratio Should Your First Activewear Order Be?