Diaper Size by Weight: Every Brand's Size Chart Compared
Read the weight range on that brand's own size chart: in the charts we track, sizes with the same number don't match across brands. Size 3, for example, starts anywhere from 9 lb to 16 lb and tops out between 18 lb and 28 lb across the 36 lines we track. In 37 of the 48 lines, one size's range runs into the next, so a weight in the overlap is listed under two sizes.
By the Cribpicks team · Published November 6, 2026 · 10 min read
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Key facts
- We track 48 disposable diaper lines from 22 brands that publish weight ranges by size.
- The most common Size 1 range is 8–14 lb, listed by 14 of the 21 lines that sell a Size 1.
- At 20 lb, 11 of the 48 lines list two sizes that both cover that weight.
- 4 lines sell a preemie size; 6 go up to Size 8.
Product numbers come from each maker's published specs, from our data as last updated November 2, 2026.
Two boxes, two brands, both marked Size 3. Flip them over and the weight ranges don’t match: across the 36 lines we track, Size 3 starts anywhere from 9 lb to 16 lb.
Here’s every brand’s chart, lined up by weight.
Diaper size finder
Enter a weight. We list the size each brand’s chart gives for it, and flag lines where two sizes overlap.
Ranges are each maker’s published size chart, not a judgment about fit. “Near the top” means within 2 lb of that size’s upper limit. Check the size chart on the box and the maker’s fit guide.
Same number, different weights
In the charts we track, each maker sets its own range for each size, so the same number on the box covers different weights. Here are the early sizes across every line we track.
| Newborn16 lines | Size 121 lines | Size 222 lines | |
|---|---|---|---|
| Starts at, across brands | 2 lb | 4 lb to 8 lb | 7 lb to 12 lb |
| Tops out, across brands | 6 lb to 10 lb | 9 lb to 14 lb | 13 lb to 22 lb |
| Median printed top weight | 10 lb | 14 lb | 18 lb |
| Most common range | up to 10 lb 13 of 16 lines | 8–14 lb 14 of 21 lines | 12–18 lb 10 of 22 lines |
| Printed as “and up” | 0 of 16 | 0 of 21 | 0 of 22 |
| Try one | Bambo Nature Baby Diapers Coterie The Diaper | Bc Babycare Cloud Skin Diaper DYPER Charcoal Diapers | EcoPeaCo Bamboo Disposable Diapers Field & Future by H-E-B Baby Diapers |
And the middle sizes, where the spread gets wider.
| Size 336 lines | Size 438 lines | Size 536 lines | |
|---|---|---|---|
| Starts at, across brands | 9 lb to 16 lb | 15 lb to 22 lb | 20 lb to 28 lb |
| Tops out, across brands | 18 lb to 28 lb | 28 lb to 37 lb | 32 lb to 40 lb |
| Median printed top weight | 28 lb | 37 lb | 37 lb |
| Most common range | 16–28 lb 22 of 36 lines | 22–37 lb 20 of 38 lines | 27+ lb 19 of 36 lines |
| Printed as “and up” | 0 of 36 | 0 of 38 | 20 of 36 |
| Try one | Bambo Nature Baby Diapers Bc Babycare Cloud Skin Diaper | Coterie The Diaper DYPER Charcoal Diapers | EcoPeaCo Bamboo Disposable Diapers Healthybaby Our Diaper |
Past Size 5, 36 lines sell a Size 6, 21 lines sell a Size 7, 6 lines sell a Size 8. 4 lines sell a preemie size.
Overlaps
In 37 of the 48 lines, the top of one size runs past the start of the next. At 20 lb, for example, 11 lines list two sizes that both cover that weight. Check each maker’s fit guide for how it reads its chart when a weight falls in between.
Where does Size 3 top out?
Upper weight limit of Size 3 in pounds, from each maker’s size chart.
- Bc Babycare Cloud Skin Diaper28 lb
- DYPER Charcoal Diapers28 lb
- DYPER Original Diapers28 lb
- EcoPeaCo Bamboo Disposable Diapers28 lb
- H-E-B Baby Diapers28 lb
- Hill Country Fare Baby Diapers28 lb
- Honest Clean Conscious Diapers28 lb
- Huggies Complete Protection28 lb
- Huggies Little Movers Diapers28 lb
- Huggies Little Movers HuggFit 360°28 lb
- Huggies Little Snugglers28 lb
- Huggies OverNites Diapers28 lb
- Huggies Plus Little Movers28 lb
- Huggies Skin Essentials28 lb
- Huggies Snug & Dry28 lb
- Kirkland Signature Diapers (Sizes 3-7)28 lb
- Pampers Cruisers 360° Pull-on Diapers28 lb
- Pampers Swaddlers 360° Pull-On Diapers28 lb
- Pampers Swaddlers Overnights Diapers28 lb
- Pampers Zzz28 lb
- Parasol Chlorine-Free Diapers with RashShield28 lb
- Parasol Pure White RashShield Diapers28 lb
- Pampers AMORE Diapers26 lb
- Pampers Baby-Dry Diapers26 lb
- Pampers Swaddlers26 lb
- Pampers Swaddlers Ultra Diapers (Day + Night)26 lb
- Coterie The Diaper24 lb
- Hey Tiger Disposable Diapers24 lb
- Kudos 100% Cotton Liner Diapers24 lb
- Millie Moon Luxury Disposable Diapers24 lb
- Rascals Premium Diapers24 lb
- Healthybaby Our Diaper22 lb
- LILLYDOO Diaper Pants22 lb
- LILLYDOO Skinfriendly Diapers22 lb
- Bambo Nature Baby Diapers18 lb
- Healthybaby Our Pull-Up Style Diaper18 lb
Every line’s size chart
Each disposable line we track, with every size and weight range the maker publishes, A to Z.
| Diaper | Type | Sizes | Weight range by size |
|---|---|---|---|
| Bambo Nature Baby Diapers | Everyday | 7 | 0: 2–6 lb; 1: 4–9 lb; 2: 7–13 lb; 3: 9–18 lb; 4: 15–31 lb; 5: 27–40 lb; 6: 35+ lb |
| Bc Babycare Cloud Skin Diaper | Everyday | 6 | 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Coterie The Diaper | Everyday | 7 | N: up to 10 lb; 2: 10–16 lb; 3: 14–24 lb; 4: 20–32 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| DYPER Charcoal Diapers | Everyday | 6 | 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| DYPER Original Diapers | Everyday | 8 | N: up to 10 lb; 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| EcoPeaCo Bamboo Disposable Diapers | Everyday | 6 | 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Field & Future by H-E-B Baby Diapers | Everyday | 1 | 2: 12–18 lb |
| Field & Future by H-E-B Overnight Diapers | Overnight | 1 | 4: 22–37 lb |
| H-E-B Baby Diapers | Everyday | 1 | 3: 16–28 lb |
| H-E-B Baby Overnight Diapers | Overnight | 1 | 4: 22–37 lb |
| Healthybaby Our Diaper | Everyday | 7 | N: up to 10 lb; 1: 7–14 lb; 2: 10–16 lb; 3: 14–22 lb; 4: 18–28 lb; 5: 24–32 lb; 6: 28–40 lb |
| Healthybaby Our Pull-Up Style Diaper | Everyday | 6 | 3: 12–18 lb; 4: 18–28 lb; 5: 24–32 lb; 6: 28–40 lb; 7: 36–50 lb; 8: 44+ lb |
| Hey Tiger Disposable Diapers | Everyday | 5 | 3: 13–24 lb; 4: 22–33 lb; 5: 28–39 lb; 6: 33–44 lb; 7: 37+ lb |
| Hill Country Fare Baby Diapers | Everyday | 1 | 3: 16–28 lb |
| Honest Clean Conscious Diapers | Everyday | 8 | Newborn: up to 10 lb; 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Complete Protection | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Little Movers Diapers | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Little Movers HuggFit 360° | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Little Snugglers | Everyday | 8 | Preemie: up to 6 lb; Newborn: up to 10 lb; 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Huggies Little Snugglers Preemie | Everyday | 1 | Preemie: up to 6 lb |
| Huggies OverNites Diapers | Overnight | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Plus Little Movers | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Huggies Plus Little Snugglers | Everyday | 3 | Newborn: up to 10 lb; 1: 8–14 lb; 2: 12–18 lb |
| Huggies Skin Essentials | Everyday | 7 | Newborn: up to 10 lb; 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Huggies Snug & Dry | Everyday | 8 | 1: 8–14 lb; 2: 12–18 lb; 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb; 8: 46+ lb |
| Kirkland Signature Diapers (Sizes 3-7) | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Kudos 100% Cotton Liner Diapers | Everyday | 6 | 1: 7–12 lb; 2: 9–16 lb; 3: 14–24 lb; 4: 20–32 lb; 5: 25+ lb; 6: 32+ lb |
| LILLYDOO Diaper Pants | Everyday | 6 | N° 3: 13.2–22 lb; N° 4: 19.8–30.9 lb; N° 5: 24.3–35.3 lb; N° 6: 28.7+ lb; N° 7: 33.1+ lb; N° 8: 37.5+ lb |
| LILLYDOO Skinfriendly Diapers | Everyday | 8 | N° 1: 4.4–11 lb; N° 2: 8.8–17.6 lb; N° 3: 13.2–22 lb; N° 4: 19.8–30.9 lb; N° 5: 24.3–35.3 lb; N° 6: 28.7+ lb; N° 7: 33.1+ lb; N° 8: 37.5+ lb |
| Millie Moon Disposable Overnight Diapers | Overnight | 3 | 4: 22–33 lb; 5: 28–39 lb; 6: 33–44 lb |
| Millie Moon Luxury Disposable Diapers | Everyday | 8 | N: up to 9 lb; 1: 6–11 lb; 2: 9–18 lb; 3: 13–24 lb; 4: 22–33 lb; 5: 28–39 lb; 6: 33–44 lb; 7: 37+ lb |
| Pampers AMORE Diapers | Everyday | 8 | Newborn: up to 10 lb; 1: 8–14 lb; 2: 10–22 lb; 3: 13–26 lb; 4: 15–34 lb; 5: 20–37 lb; 6: 23–44 lb; 7: 26–50 lb |
| Pampers Baby-Dry Diapers | Everyday | 8 | 0: up to 10 lb; 1: 8–14 lb; 2: 10–22 lb; 3: 13–26 lb; 4: 15–34 lb; 5: 20–37 lb; 6: 23–44 lb; 7: 26–50 lb |
| Pampers Cruisers 360° Pull-on Diapers | Everyday | 5 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb; 7: 41+ lb |
| Pampers Swaddlers | Everyday | 10 | Preemie: up to 6 lb; Newborn: up to 10 lb; 1: 8–14 lb; 2: 10–22 lb; 3: 13–26 lb; 4: 15–34 lb; 5: 20–37 lb; 6: 23–44 lb; 7: 26–50 lb; 8: 30+ lb |
| Pampers Swaddlers 360° Pull-On Diapers | Everyday | 4 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Pampers Swaddlers for Preemies | Everyday | 4 | Pxxs: up to 1.1 lb; Pxs: up to 1.8 lb; Ps: up to 4 lb; P: up to 6 lb |
| Pampers Swaddlers Overnights Diapers | Overnight | 4 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Pampers Swaddlers Ultra Diapers (Day + Night) | Everyday | 9 | Newborn: up to 10 lb; 1: 8–14 lb; 2: 10–22 lb; 3: 13–26 lb; 4: 15–34 lb; 5: 20–37 lb; 6: 23–44 lb; 7: 26–50 lb; 8: 30+ lb |
| Pampers Zzz | Overnight | 4 | 3: 16–28 lb; 4: 22–37 lb; 5: 27+ lb; 6: 35+ lb |
| Parasol Chlorine-Free Diapers with RashShield | Everyday | 6 | 1: 7–14 lb; 2: 10–18 lb; 3: 16–28 lb; 4: 20–32 lb; 5: 26–36 lb; 6: 35+ lb |
| Parasol Pure White RashShield Diapers | Everyday | 3 | 3: 16–28 lb; 4: 20–32 lb; 5: 26–36 lb |
| Parent's Choice Dry & Gentle Diapers | Everyday | 1 | 1: 8–14 lb |
| Rascals Premium 360 Pull-On Diapers | Everyday | 3 | 4: 22–33 lb; 5: 28–39 lb; 6: 33–44 lb |
| Rascals Premium Diapers | Everyday | 8 | Newborn: 2–9 lb; 1: 6–11 lb; 2: 9–18 lb; 3: 13–24 lb; 4: 22–33 lb; 5: 28–39 lb; 6: 33–44 lb; 7: 37+ lb |
| up&up Diapers | Everyday | 1 | Newborn: up to 10 lb |
| up&up Overnight Diapers | Overnight | 1 | 6: 35+ lb |
| Wegmans Premium Diapers | Everyday | 1 | Newborn (Size 0): up to 10 lb |
From each maker's published specs. Some store-brand listings cover only the size we price.
After the biggest size
We also track 18 training pants with printed sizes. Their labels include toddler sizes such as 2T-3T as well as letters and numbers; 18 of them print a weight range. Compare them on the training pants hub, and see the overnight diapers hub for night lines.
Before you buy the next size
- Your baby’s current weight
- The weight range on this brand’s own chart, not the size number
- Whether that weight sits in an overlap between two sizes
- Tab or pull-on version, since their charts can differ
- The maker’s fit guide for when to move up
Setting up a changing station too? Read types of diapers, how to choose a changing pad cover that fits and diaper pail capacity and refills. Compare every line on the diapers hub.
Questions parents ask
Answers come from makers' published specs and official sources linked below.
What size diaper for a 20 lb baby?
It depends on the brand, and some lines list two sizes that both cover 20 lb. Enter 20 in the finder in this guide to see each brand's answer.
Are diaper sizes the same across brands?
No. Each maker sets its own weight ranges, so the same size number can start or stop several pounds apart from one brand to the next.
What weight is a newborn diaper for?
The Newborn column in this guide shows the most common Newborn range among the lines we track and how far brands differ. Check the chart on the box you buy.
When should I move up a diaper size?
Check each maker's fit guide and the chart on the box. The weight ranges in this guide show where each size tops out, brand by brand.
Why do diaper sizes overlap?
Each maker sets its own ranges. In many of the charts we track, the top of one size runs past the start of the next, so a weight in the overlap appears under two sizes.
Should I buy a lot of newborn diapers?
The Newborn column in this guide shows where Newborn tops out and where Size 1 starts in each brand's chart. Check the store's return policy for unopened boxes.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
Sources
Policies and specs change. We list the date we last checked each one; confirm with the airline or maker before you travel or buy. Read our editorial policy.