Dog Calculators & Tools
Quick, no-signup tools that answer one dog question at a time. I make these so you are not counting days on a calendar or guessing at portions. Pick one below.
Pregnancy & Breeding
Age & Growth
Feeding & Health
Sizing & Gear
Cost
What you can do here
Each tool answers one question and gives you a straight answer. No sign-up, no app, no math on your end. Type in what you know, like a mating date or your dog's weight, and the tool handles the rest.
They run on the same breed data behind the charts on this site. The pregnancy calculator is ready now, and this page fills in as each new tool ships.
How the tools work
Pick a tool, enter your number or date, and read the result. Everything runs in your browser, so it works the same on a phone or a laptop. Nothing is saved or sent anywhere.
Treat each result as a starting point. Breed averages are reliable, but your own dog can sit above or below them.
A calculator or a chart?
A calculator gives you a quick, personal answer. A chart shows the full range so you can see where your dog fits. They work well together. For the background behind a number, the guides go deeper. Start with the dog pregnancy chart, the dog food chart, or the dog size chart.
Questions about the tools
Are these tools free?
Yes. Every tool on this page is free, with no account and no email needed.
Do they work on my phone?
They do. Each tool is built to run on any screen, from an old phone to a desktop.
How accurate are they?
They use breed averages and standard vet guidance, so they land close for most dogs. For anything medical, check with your vet.
Can I request a new tool?
Yes. Leave a comment with the tool you want and I will add it to the list.