Sports team (mixed)
Balanced mix men/women, centered sizes
Peak M on 100 t-shirtsSizePlan
Not sure how many M, L and XL to order?
Enter the number of pieces and the type of audience. SizePlan calculates how many sizes to buy — no waste, no leftovers.
01 / 04Quantity
How many people will receive the garment?
The starting point. Enter the total number of pieces — we'll use this number as the basis for estimating the size distribution.
Quick picks
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The problem you know well
You've decided to print some t-shirts. You know how many you want. You don't know what sizes.
You order on instinct, you end up with twelve XL and run out of M before you even start. Or you order a bit of everything and still come up short on the right sizes. It's a problem that affects event organizers, merch sellers, team kit buyers — anyone ordering custom apparel for a group of people they don't know.
SolutionA statistical distribution in less than a minute
- For everyone, no limits
- No account to calculate
- Result in under a minute
- Editable size by size
How it works
Four questions, an instant result.
No registration, no form to fill in. Just the information that matters. Result in less than a minute, editable by hand.
- 01Quantity
Enter the quantity.
How many pieces do you want to order in total? You can use a precise number or one of the most common presets — from 15 to 1000 pieces.
- 02Garment
Choose the garment.
T-shirt, hoodie, polo or jacket. The garment type influences the statistical curve — a hoodie fits differently than a t-shirt, which shifts how sizes distribute across the group.
- 03Recipients
Choose the recipients.
Sports team, mixed office, university event, festival. The group profile shifts the curve — not every audience distributes the same way.
- 04Distribution
Get the distribution.
SizePlan calculates how many XS · S · M · L · XL · XXL · XXXL to order, with the peak size highlighted. Editable by hand; the PDF with a Custoomy account.
Who it's for
A profile for every audience.
14 types of audience, each with its own size curve.
Sports team (men)
Prevalence M–L–XL, peak L
Peak L on 100 t-shirtsSports team (women)
Prevalence S–M, peak M
Peak M on 100 t-shirtsCompany / Mixed office
Typical office mix, sizes shifted toward M–L
Peak L on 100 t-shirtsIndustry / Workers
Prevalence L–XL–XXL
Peak L on 100 t-shirtsUniversity event (mixed)
Students 18–26 years, balanced mix
Peak M on 100 t-shirtsUniversity students (men)
Students 18–26 years, peak L
Peak L on 100 t-shirtsUniversity students (women)
Female students 18–26 years, peak M
Peak M on 100 t-shirtsEvent / Festival
General audience, streetwear, balanced mix
Peak M on 100 t-shirtsBrand / Creator
Stock for brand or creator with defined audience
Peak M on 100 t-shirtsGeneral mixed
General audience, no specific profile
Peak L on 100 t-shirtsOver 50 / Senior
Prevalence L–XL–XXL
Peak L on 100 t-shirtsMiddle school (11–14 yrs)
Adult XS–L sizes
Peak S on 100 t-shirtsPrimary school (5–10 yrs)
Sizes 6A–14A
Peak 10A on 100 t-shirtsFrequently asked questions
Everything you want to know about SizePlan.
Can't find the answer you're looking for? Write to us — we improve the tool continuously.
Anyone, with no limits: the calculation asks for no sign-up and no payment details. Downloading the PDF and saving the configuration need a Custoomy account.
They are starting estimates for each type of audience, drawn from industry research: not measurements we collected. They work best for large groups (50 pieces or more) and fairly homogeneous audiences. If you can ask everyone their size, FitList collects the real ones.
Yes. With few pieces rounding matters more: 3% of 20 pieces is 0.6, which becomes 0 or 1 so the total adds up exactly. It is worth checking the numbers with manual editing.
SizePlan supports four garment categories: T-shirt (cotton/jersey), Sweatshirt/Hoodie (with or without hood), Polo (collar, piqué), Jacket/Vest (softshell, bomber, vest).
Yes. On the results page you'll find the manual edit function: you can increase or decrease the quantity for each individual size. The total updates in real time.
SizePlan is used when you don't know the sizes of who will receive the garments — it gives you a statistical estimate. FitList is used when you can collect sizes one by one. If you have access to the recipients, use FitList. If you don't, use SizePlan.
Yes. You can specify the fit — Slim fit, Regular or Oversize — in the recipients step. Slim fit shifts the distribution toward smaller sizes, oversize toward larger ones.
From the results page you can copy the link to share the result. With a Custoomy account you can also download the PDF and save the configuration.
Work out the sizes for your order. In under a minute.
SizePlan gives you a starting estimate for your type of audience. If you can ask everyone their size, FitList collects the real ones.