Cavapoo Size Guide: How Big Do Cavapoos Get?
One of the most common questions prospective Cavapoo owners ask is: how big do Cavapoos get? The answer depends on several factors — primarily the size of the Poodle parent. Here’s a complete size guide to help you know what to expect.
Cavapoo Size: The Basics
Cavapoos are a cross between a Cavalier King Charles Spaniel and a Poodle. The Cavalier is a consistently sized breed — typically 12–13 inches tall and 12–18 lbs. The Poodle, however, comes in three sizes: standard, miniature, and toy. This is where the size variation comes from.
Most Cavapoos are bred from either a Miniature Poodle or a Toy Poodle, resulting in two distinct size ranges.
Miniature Cavapoo vs Toy Cavapoo
| Type | Poodle Parent | Height | Weight | Best For |
|---|---|---|---|---|
| Toy Cavapoo | Toy Poodle | 9–12 inches | 7–13 lbs | Apartments, smaller homes, less active owners |
| Miniature Cavapoo | Miniature Poodle | 12–16 inches | 13–25 lbs | Families, active owners, homes with yards |
Most people refer to both sizes simply as “Cavapoos.” When you see a breeder advertising a Cavapoo, always ask what size Poodle they use — this is the most important factor in predicting adult size.
When Do Cavapoos Stop Growing?
Cavapoos generally reach their full height by around 6–8 months of age, but continue to fill out in muscle and weight until around 12 months. Toy Cavapoos mature slightly faster than Miniature Cavapoos.
Here’s a rough growth timeline:
- 8 weeks: 2–4 lbs (Toy), 3–6 lbs (Mini)
- 3 months: 4–7 lbs (Toy), 6–12 lbs (Mini)
- 6 months: 6–11 lbs (Toy), 10–20 lbs (Mini)
- 12 months: 7–13 lbs (Toy), 13–25 lbs (Mini)
These are estimates — individual dogs vary significantly based on genetics and diet.
What Affects Cavapoo Size?
Several factors influence how big your Cavapoo will ultimately be:
- Poodle parent size: The single biggest determinant
- Generation: F1b Cavapoos (75% Poodle) tend to be slightly smaller than F1s
- Sex: Males are typically 10–20% larger than females
- Diet: Overfeeding a puppy can cause faster-than-expected growth and weight gain
How Does Size Affect Food and Exercise Needs?
Smaller Cavapoos need less food but are still active dogs that require daily exercise. For food guidance specific to Cavapoos, see our best food for Cavapoos guide — it covers portion sizes for different weights and life stages.
Most Cavapoos need 30–60 minutes of exercise per day regardless of size. Toy Cavapoos can get more of their exercise needs met indoors, making them a good fit for apartment living.
Size and What to Buy
Knowing your Cavapoo’s expected adult size matters when buying equipment. For crates, harnesses, beds and food bowls, you’ll want to size appropriately — most Cavapoos fit “small” to “medium” sizing across most pet brands.
Our complete Cavapoo puppy checklist notes recommended sizes for all essential equipment.
Final Thoughts
Cavapoos are a small to medium breed — compact enough for apartment living, but sturdy enough to enjoy outdoor adventures. Whether you choose a Toy or Miniature Cavapoo, you’re getting a loving companion that won’t take up too much space — but will fill your home with personality.
