How do I measure my dog's food accurately when travelling?

Weigh out each meal into its own resealable bag or small container at home, labeled with the date if the trip is more than a few days, so you never have to guess a portion away from your usual kitchen scale.

This also makes it easy for someone else to feed your dog correctly if you are sharing the trip or leaving your dog with someone briefly along the way.

A small folding travel scale, similar in size to a luggage scale, is inexpensive and reasonably accurate for dog food portions, and is worth packing if you travel with your dog regularly.

Stackable portion containers, sold specifically for pet travel, let you measure once at home and carry several days of pre weighed meals without needing a scale at all while away.

In a pinch, use the same consistent scoop or cup you use at home, accepting that accuracy will be rougher for a short period, and return to precise weighing once you are back to your normal setup.

Keep a couple of days of buffer food packed beyond what you expect to need, since travel schedules often run longer than planned. A spare empty container is worth packing too, in case a bag splits or a container lid goes missing partway through the trip, since replacements are rarely convenient to find while away from home.