Plus Size Calculator: 14 to 30+
This plus size calculator extends from 14 to 30+ — past the XL ceiling most generic tools enforce. Enter bust, waist, and hip; the tool returns sizes across plus-size lines (14W, 18W, 22W, 26W, 30W) and extended-size straight lines (0–26). Built for shoppers who've been told 'we don't carry your size' too many times. Use the calculator below to get your exact fit in 30 seconds.
How it works
Measure yourself
Take your bust, waist, and hips with a soft tape. See the full measurement guide.
Enter the numbers
Type your measurements into the calculator above. Pick inches or cm — the tool converts both ways.
Get your size
Match the result against the brand's chart and order with confidence.
Plus size — 14W to 30W
| Plus Size | Bust | Waist | Hip |
|---|---|---|---|
| 14W | 41–43" | 33–35" | 44–46" |
| 18W | 45–47" | 37–39" | 48–50" |
| 22W | 49–51" | 41–43" | 52–54" |
| 26W | 53–55" | 45–47" | 56–58" |
| 30W | 57–59" | 49–51" | 60–62" |
Frequently Asked Questions
What's the difference between 18W and 18 in straight sizing?
18W is plus-cut: wider shoulders relative to bust, less dramatic waist taper, fuller hip. Same bust/waist/hip numbers as a straight 18, different proportions.
How do plus sizes convert to UK and EU?
Plus 14W ≈ UK 18 / EU 46. Plus 18W ≈ UK 22 / EU 50. Plus 26W ≈ UK 30 / EU 58. Always cross-check the brand's chart.
Should I size up for plus-size jeans?
Match exactly. Plus-size denim has stretch built in; sizing up causes the waistband to roll.
Why do my plus-size tops fit at the bust but pull at the shoulder?
Cheaper plus lines scale up straight-size patterns instead of using plus-cut blocks. Order from a brand cutting plus blocks specifically.
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