The Olde English Bulldogge is a medium-sized dog. Not a giant. Not a small bulldog. Adult OEBs typically stand 16-20 inches at the withers and weigh 50-80 pounds, with males larger than females.
That range is the breed standard. Outside that range usually means either an undersized OEB (more English Bulldog influence) or an oversized one (more Bullmastiff or American Bulldog influence). Both occur. Both are technically faults per the breed standard but neither is uncommon.
Reminder. Buy from a breeder whose adult dogs are within breed standard. If you visit and the parents are 100+ pounds, your puppy will probably grow to 100+ pounds. Adult-size genetics show up in the parents.
Adult size ranges
Males
- Height: 17-20 inches at the withers
- Weight: 60-80 pounds
Females
- Height: 16-19 inches at the withers
- Weight: 50-70 pounds
These ranges are the OBBA breed standard. Most healthy, structurally sound OEBs land inside them. Full breed standard.
Growth chart by month
Approximate weights through the first year, expected for a 65-lb adult OEB:
| Age | Approx. weight (lbs) |
|---|---|
| 8 weeks | 10-15 |
| 3 months | 20-30 |
| 4 months | 28-38 |
| 6 months | 40-55 |
| 9 months | 52-65 |
| 12 months | 58-72 |
| 18 months (mature) | 60-80 |
OEBs do most of their height growth by 9 months and most of their weight gain by 12. They continue to fill out and "stack" musculature until 18-24 months.
Predicting adult size from puppy
The classic rule of thumb: an 8-week-old puppy weighing X pounds will roughly mature to (8-week weight × 4.5) to (8-week weight × 6) pounds, depending on line and sex. So a 12-pound 8-week-old will mature to roughly 55-72 pounds.
More reliable: look at the parents. Adult size is heavily heritable. A puppy from a 70-lb sire and a 60-lb dam will land somewhere between those numbers as an adult. A 90-lb sire produces 80-100 lb adults regardless of what the puppy weighs at 8 weeks.
Don't push growth
More food, more growth, bigger dog is a tempting equation but it's wrong. Pushing puppy growth past the line's natural rate causes growth-plate problems and contributes to hip and elbow dysplasia in OEBs.
Use a large-breed puppy formula, feed to body condition (visible waist, ribs palpable under thin fat), and let the puppy mature at its genetic rate. A 70-pound fit OEB at 14 months is healthier than a 75-pound roly-poly OEB at 8 months.Feeding guide.
When dogs come in smaller or larger
Outside-standard OEBs exist and aren't necessarily a problem for a pet home. They may not be ideal for breeding because consistency matters in a young breed.
- Undersized (40-50 lb adult). Often more English Bulldog influence in the line. May have shorter muzzle, more brachycephalic tendencies. Watch for breathing issues.
- Oversized (85-100+ lb adult). Often more Bullmastiff or American Bulldog influence. Can be structurally sound but may have shorter lifespan than ideal-size OEBs (giant-breed life expectancy).