Most dog advice ends with “it depends,” then leaves you to do the math. These four tools do the math. Each one runs on the same rules a good trainer or vet would use, nothing invented, and gives you a number you can act on today. Built for apartment and first-time owners, free, no sign-up.
A quick caveat worth repeating: every dog is one of a kind. Treat these as a solid starting point, then adjust for your own dog’s health, breed quirks, and the day in front of you. When something seems off, your vet beats any calculator.