FurSize / Brand size charts / Julius-K9 size chart
Julius-K9 IDC Powerharness size chart
Julius-K9 numbers its sizes from Baby1 up to 4, with a weight guide alongside the chest range. It is the longest chart here, nine sizes from tiny to giant.
FIND YOUR SIZE
Type your dog's chest number
Your result appears here, and the matching row is highlighted below.
| Size | Chest girth | Weight guide |
|---|---|---|
| Baby1 | 29–36 cm (11.5–14 in) | 0.8–3 kg (2–6.5 lb) |
| Baby2 | 33–45 cm (13–17.5 in) | 2–5 kg (4.5–11 lb) |
| Mini-Mini | 40–53 cm (15.5–20.5 in) | 4–7 kg (9–15.5 lb) |
| Mini | 49–67 cm (20–26.5 in) | 7–15 kg (15.5–33 lb) |
| 0 | 58–76 cm (23–30 in) | 14–25 kg (31–55 lb) |
| 1 | 63–85 cm (26–33.5 in) | 23–30 kg (50.5–66 lb) |
| 2 | 71–96 cm (28–37.5 in) | 28–40 kg (61.5–88 lb) |
| 3 | 82–115 cm (32.5–46.5 in) | 40–70 kg (88–154 lb) |
| 4 | 96–138 cm (38–54.5 in) | 70–90 kg (154–198 lb) |
Numbers copied from julius-k9.com, checked 2026-10-10. Brands change charts, so confirm on the product page before you order. FurSize is not affiliated with Julius-K9.
Before you order
Julius-K9 sizes by chest circumference.
Different brands cut different sizes, so a Medium here is not a Medium elsewhere. Match the chest number every time. The fit check takes a minute once it arrives.
Other brand charts
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- Non-stop Line Harness size chart
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Questions
What size Julius-K9 idc powerharness should I get?
Match your dog's chest girth to the chart on this page. Julius-K9 prints a chest range and a weight range for each size. If your dog's chest sits in two rows, use the weight column to break the tie.
Are Julius-K9 sizes the same as S, M and L?
No. The maker uses Baby1 to 4 and some shops add letter names next to them. Match the chest number, not the letter.
How do I measure chest girth?
Stand your dog and wrap a soft tape around the widest part of the ribcage, just behind the front legs. Keep it snug, with room for two fingers.
Get a number you can reuse.
Type your dog's chest once. See the right size in every brand we cover.
