Skip to content

Pet Measurement Converter

Convert crate, collar, harness and coat measurements between centimetres and inches.

✔ Reviewed by a licensed veterinarianContent updated 18 Oct 2026Reviewed 18 Oct 2026Sources: Pure arithmetic / unit conversion on user inputs
Pet Measurement ConverterFree · instant
Fields marked * are required

Calculated in your browser. The numbers you type are never sent to us or stored.

Quick answer. A 30 inch crate is 76.2 cm long, and an 80 cm dog is about 31.5 inches. Multiply inches by 2.54 to get centimetres, or divide centimetres by 2.54 to get inches. Enter a length and its unit to see centimetres, millimetres, inches and feet with inches.

How to use the pet measurement converter

  1. Enter the length.
  2. Choose centimetres or inches.
  3. Press Calculate.

Worked example

A crate that is 30 inches long.

Length
30
Unit
Inches (in)
76.2 cm = 30 in
Centimetres
76.2
Millimetres
762
Inches
30
Feet and inches
2 ft 6 in

1 inch = 2.54 cm exactly.

Example values are illustrative; this result is produced by the same calculator above.

How we calculate it

1 inch = 2.54 cm exactly; 1 foot = 12 inches; millimetres = cm × 10

Sources: Pure arithmetic / unit conversion on user inputs (no external constant)

Understanding your result

Crates, harnesses, collars and coats are sold with sizes in either centimetres or inches. An inch is exactly 2.54 centimetres, so you can convert in either direction.

A 30 inch crate is 76.2 cm long, and a dog measuring 80 cm is 31.5 inches, or 2 feet 7.5 inches. The converter also shows millimetres and feet with inches.

Use it to compare your pet's measurements with a size chart. Brand charts differ, so always check the maker's own measuring instructions as well.

Common mistakes

  • Using the outside measurement of a crate when the chart lists inside size.
  • Measuring a loose tape; keep it snug but not tight.
  • Mixing feet and inches with decimal inches.
  • Rounding a measurement down when it falls between two sizes.
  • Ignoring that stretch and fit differ between brands.

Good to know

  • The Dog Crate Size and Dog Harness Size calculators show what to measure.
  • Measure your pet standing on level ground.
  • When in doubt, ask the maker or a shop to confirm the size.

Frequently asked questions

How do I convert cm to inches?

Divide centimetres by 2.54. A 70 cm chest girth is about 27.6 inches.

How do I convert inches to cm?

Multiply inches by 2.54. A 30 inch crate is 76.2 cm long.

Are brand size charts in cm or inches?

It varies by brand and country, so convert your measurement to the unit the chart uses before you compare.

How many centimetres in an inch?

An inch is exactly 2.54 centimetres.

Which unit do harness charts use?

It varies by brand and country. Convert your measurement to the chart's unit before you compare.

Can I convert feet and inches?

Enter the total in inches (for example 30 for 2 ft 6 in) and choose inches; the result also shows feet and inches.

Reviewed by a licensed veterinarian
Last reviewed 18 Oct 2026 · How we review

Sources

  1. Pure arithmetic / unit conversion on user inputs (no external constant)

Guides about this

Embed this calculator
Free for vets, rescues and pet blogs — no ads inside the widget.
Get embed code

Estimates only. Every pet is different — confirm with your veterinarian.