Leonberger size chart: crate, harness & collar
What the published charts say for a Leonberger, across 19 harnesses, 6 crates and 7 collars. Every answer says how it was reached, and none of them replaces measuring your dog.
Adult Leonberger
- Height at the shoulder
- Male 28–31.5 in71.1–80 cm
Female 25.5–29.5 in64.8–74.9 cm - Adult weight
- Male 110–170 lb49.9–77.1 kg
Female 90–140 lb40.8–63.5 kg - Chest girth
- 41.3–45.3 in104.9–115.1 cm
- Neck
- 21.7–25.6 in55.1–65 cm
AKC prints: “Height: 28-31.5 inches (male), 25.5-29.5 inches (female)”, “Weight: 110-170 pounds (male), 90-140 pounds (female)”.
Source: AKC breed page, checked Nov 4, 2026.
Source: TARIGS, "Size table for different breeds" (breed row: Leonberger; inch values as printed, converted by TARIGS from cm; not sex-specific), checked Nov 4, 2026. Girth is a published chart range, not a breed-standard measurement, and is not split by sex.
These are published breed figures, not your dog. Measure your dog — chest girth for a harness, neck for a collar, length and height for a crate.
Sized for a male Leonberger
Harness sizes
| Harnesses (19) | Size | How it was worked out |
|---|---|---|
| Julius-K9 IDC Powerharness | 3 or 4 | by chest girthBetween sizes. Check the maker’s chart before you buy. |
| Ruffwear Front Range Harness | L/XL | by chest girth |
| Ruffwear Flagline Harness | L/XL | by chest girth |
| Ruffwear Web Master Harness | L/XL | by chest girth |
| Kurgo Tru-Fit Smart Harness (quick release) | X-Large | by chest girth |
| PetSafe Easy Walk Harness | Extra Large | by chest girth |
| PetSafe Easy Walk 3 in 1 Harness | Large | by chest girth |
| Rabbitgoo ControlPro No-Pull Harness (ControlPro series) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Blue-9 Balance Harness | L | by chest girth |
| 2 Hounds Design Freedom No-Pull Harness | 1" XXLarge | by chest girth |
| Wild One Classic Cushioned Dog Harness (with neck buckle) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Wild One Step-In Dog Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Voyager (Best Pet Supplies) Step-In Air Pet Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Gooby Comfort X Head-In Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Puppia RiteFit Harness (PAJA-AC617) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Puppia Soft Harness (PDCF-AC30) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Chai's Choice Outdoor Adventure Dog Harness (3M reflective) | XL | by chest girth |
| Embark Adventure No-Pull Harness | XL | by chest girth |
| Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341) | X-LARGE | by chest girth |
Crate sizes
| Crates (6) | Size | How it was worked out |
|---|---|---|
| MidWest Homes for Pets iCrate Single Door Folding Dog Crate | 48-inch | by weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller. |
| MidWest Homes for Pets LifeStages Single Door Dog Crate | 48-inch | by weightMidWest Homes for Pets lists the outside of the box; the usable inside is smaller. |
| Petmate Sky Kennel | 48" | by weight |
| Diggs Revol Collapsible Dog Crate | No size | by weightDiggs lists no Revol Collapsible Dog Crate size for over 90 lb. Check with Diggs. |
| Impact Dog Crates Collapsible Dog Crate | Sizes by measurement only | Impact Dog Crates publishes no dog weight. Use the crate calculator.estimated interior, about ½ in smaller than Impact’s exterior size (Impact’s own note) |
| Frisco (Chewy) Fold & Carry Single Door Collapsible Wire Dog Crate | X-Large | by weightFrisco (Chewy) lists the outside of the box; the usable inside is smaller. |
Every crate row above is by the maker’s weight guidance, because no published body length exists per breed. A crate is sized on the body: use the calculator below with your own measurements.
Collar sizes
| Collars (7) | Size | How it was worked out |
|---|---|---|
| Ruffwear Front Range Collar | 20"-26" | by neck girth |
| Blueberry Pet Classic Solid Color Adjustable Dog Collar | L | by neck girth |
| PetSafe Martingale Collar | No size | by neck girthThis breed's published neck girth falls outside every size this maker prints. |
| Max and Neo Martingale All Nylon Dog Collar | Large | by neck girth |
| Wild One Waterproof Dog Collar | Extra Large | by neck girth |
| 2 Hounds Design Side Release (Buckle) Collar / Buckle Martingale | XL | by neck girth |
| Carhartt Dog Collar | LARGE | by neck girth |
Sized for a female Leonberger
Harness sizes
| Harnesses (19) | Size | How it was worked out |
|---|---|---|
| Julius-K9 IDC Powerharness | 3 or 4 | by chest girthBetween sizes. Check the maker’s chart before you buy. |
| Ruffwear Front Range Harness | L/XL | by chest girth |
| Ruffwear Flagline Harness | L/XL | by chest girth |
| Ruffwear Web Master Harness | L/XL | by chest girth |
| Kurgo Tru-Fit Smart Harness (quick release) | X-Large | by chest girth |
| PetSafe Easy Walk Harness | Extra Large | by chest girth |
| PetSafe Easy Walk 3 in 1 Harness | Large | by chest girth |
| Rabbitgoo ControlPro No-Pull Harness (ControlPro series) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Blue-9 Balance Harness | L | by chest girth |
| 2 Hounds Design Freedom No-Pull Harness | 1" XXLarge | by chest girth |
| Wild One Classic Cushioned Dog Harness (with neck buckle) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Wild One Step-In Dog Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Voyager (Best Pet Supplies) Step-In Air Pet Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Gooby Comfort X Head-In Harness | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Puppia RiteFit Harness (PAJA-AC617) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Puppia Soft Harness (PDCF-AC30) | No size | by chest girthThis breed's published chest girth falls outside every size this maker prints. |
| Chai's Choice Outdoor Adventure Dog Harness (3M reflective) | XL | by chest girth |
| Embark Adventure No-Pull Harness | XL | by chest girth |
| Carhartt Training Dog Harness (Nylon Duck Training Harness, PH0341) | X-LARGE | by chest girth |
Crate sizes
| Crates (6) | Size | How it was worked out |
|---|---|---|
| MidWest Homes for Pets iCrate Single Door Folding Dog Crate | 42-inch or 48-inch | by weightBetween sizes. Check the maker’s chart before you buy.MidWest Homes for Pets lists the outside of the box; the usable inside is smaller. |
| MidWest Homes for Pets LifeStages Single Door Dog Crate | 42-inch or 48-inch | by weightBetween sizes. Check the maker’s chart before you buy.MidWest Homes for Pets lists the outside of the box; the usable inside is smaller. |
| Petmate Sky Kennel | 40" or 48" | by weightBetween sizes. Check the maker’s chart before you buy. |
| Diggs Revol Collapsible Dog Crate | Large | by weight |
| Impact Dog Crates Collapsible Dog Crate | Sizes by measurement only | Impact Dog Crates publishes no dog weight. Use the crate calculator.estimated interior, about ½ in smaller than Impact’s exterior size (Impact’s own note) |
| Frisco (Chewy) Fold & Carry Single Door Collapsible Wire Dog Crate | Large or X-Large | by weightBetween sizes. Check the maker’s chart before you buy.Frisco (Chewy) lists the outside of the box; the usable inside is smaller. |
Every crate row above is by the maker’s weight guidance, because no published body length exists per breed. A crate is sized on the body: use the calculator below with your own measurements.
Collar sizes
| Collars (7) | Size | How it was worked out |
|---|---|---|
| Ruffwear Front Range Collar | 20"-26" | by neck girth |
| Blueberry Pet Classic Solid Color Adjustable Dog Collar | L | by neck girth |
| PetSafe Martingale Collar | No size | by neck girthThis breed's published neck girth falls outside every size this maker prints. |
| Max and Neo Martingale All Nylon Dog Collar | Large | by neck girth |
| Wild One Waterproof Dog Collar | Extra Large | by neck girth |
| 2 Hounds Design Side Release (Buckle) Collar / Buckle Martingale | XL | by neck girth |
| Carhartt Dog Collar | LARGE | by neck girth |
Puppy?
Size for the adult and use a divider. A crate bought to fit a puppy is outgrown in weeks, and a crate with a spare end stops working as a den. Buy the adult size and move the divider back as the dog grows. A harness or collar is the opposite: buy for the dog you have now, because adult-sized straps slip on a puppy.
Is your dog a mix?
Mixes vary a lot. Measure your dog. A breed figure describes a published standard, and a mix is not held to one. Two dogs from the same litter can land two sizes apart on the same chart.
Measure your Leonberger
The tables above start from a published breed range. This starts from your dog. Crates need a body length and a standing height, plus 4 in of room.
Size your Leonberger
Enter what you have measured. Every answer below is the maker’s own published range against your number — a starting point, not a fitting.
Published range for the Leonberger: 41.3 to 45.3 in chest, 21.7 to 25.6 in neck (TARIGS, "Size table for different breeds").
Measure your dog and enter it. A published range is a range: the boxes below stay empty because the middle of a range is a number nobody published. Full Leonberger size chart
Where to put the tape. Leave a box empty and the answers that need it say so, rather than guessing.
Enter a measurement above to see what each maker's chart says.
Sizes come from each maker’s own published chart. Check the maker’s current chart before you buy: charts change, and nothing here is a guarantee of fit.
Common questions
- What size harness for a Leonberger?
- On the charts published by their makers, a Leonberger comes out at Julius-K9 IDC Powerharness 3 or 4, Ruffwear Front Range Harness L/XL, Ruffwear Flagline Harness L/XL (by published chest girth), with 12 of 19 charts giving a size. Size labels are not comparable between brands, so read the range rather than the letter. Measure your dog's chest girth at the widest part of the rib cage and check it against the maker's own chart before you buy.
- What size crate for a Leonberger?
- By the makers' own weight guidance, a Leonberger comes out at MidWest Homes for Pets iCrate Single Door Folding Dog Crate 48-inch, MidWest Homes for Pets LifeStages Single Door Dog Crate 48-inch, Petmate Sky Kennel 48". Weight is the rougher route: a crate is sized on the body. Measure your dog from the nose to the base of the tail and from the floor to the top of the head while standing, add 4 inches to each, and compare that with the crate's interior, not its outside.
- How big does a Leonberger get?
- An adult Leonberger is 28–31.5 in tall at the shoulder for males and 25.5–29.5 in for females, 110–170 lb for males and 90–140 lb for females. Published sizing charts give a chest girth of 41.3–45.3 in and a neck of 21.7–25.6 in. These are breed-standard ranges, not your dog: individual dogs sit outside them. Measure your dog.
Other giant breeds
Breeds in the same size group on this site. The group is worked out here from adult male weight; it is not an AKC category.
Compare every chart instead: harness size charts, crate size charts, collar size charts.