Gerbils are desert animals, and they thrive on small, steady amounts of food rather than big feasts. A good gerbil diet is mostly a quality seed mix, with small portions of fresh vegetables and occasional protein. This free calculator gives daily seed-mix grams and fresh-food grams from your gerbil count, so feeding stays measured instead of guessed.
What this tool does
This free gerbil food calculator – how much to feed gerbils daily runs entirely in your browser. Nothing you type is sent to a server, and nothing is stored online. You enter a few simple facts about your gerbils, press the button, and the result appears at once. You can change any value and run it again as often as you like. That makes it easy to test what happens when weight, count, or age changes, and to prepare good questions for your vet.
How to use it
Start with the facts you know for sure. Weigh your gerbils if you can, because a guessed weight makes the whole result less useful. Then pick the options that match your gerbils best, such as age group or count. Press the calculate button and read the result lines one by one. If a value looks surprising, check the inputs first: a wrong unit or a wrong age group is the most common cause of a strange result.
Reading your result
The first line is seed mix per day in grams, and the second line is fresh food per day in grams. The third line is seed mix per week, which helps with shopping. Fresh food should be a small side portion, not the main meal, and any uneaten fresh food should come out after a few hours so it does not spoil in the tank.
Worked example
Take 2 gerbils. The calculator gives 24 grams of seed mix per day and 10 grams of fresh food per day, which is 168 grams of seed mix per week. Scatter the seed mix in the bedding so gerbils can forage as they would in the wild, and offer fresh food in a small dish. Weigh the seed mix at first until your eye learns what 12 grams per gerbil looks like.
Practical tips
Choose a gerbil-specific seed mix with small seeds, and avoid mixes heavy in sunflower seeds, which are fatty. Offer fresh vegetables like carrot, broccoli, or cucumber in tiny pieces, and add a little plain mealworm or egg once a week for protein. Keep a mineral stone and a chew block in the tank, because gerbil teeth grow all their lives. Fresh water from a bottle, checked daily, completes the routine.
When to ask your vet
Book a vet visit if a gerbil stops eating, loses weight, drools, or has overgrown teeth that stop it closing its mouth. Dental problems are common in gerbils and need prompt care. Bring your feeding amounts and a note of when eating changed, because that history helps the vet act fast.
Common questions
Is this veterinary advice? No. This tool gives educational estimates for healthy pet gerbils. It does not diagnose illness, and it does not replace a vet, especially for sick animals or animals on medication.
How accurate is the result? It is a good starting point for most gerbils, but real needs vary with breed, body shape, weather, and daily routine. Use the result for two to four weeks, watch the trend, and then fine-tune.
What if my gerbil is very active one day and lazy the next? Feed and plan for the average week, not for a single day. Active days can take a small extra, and rest days can take a slightly smaller amount, as long as the weekly total stays near the target.
Spanish version: Calculadora de comida para jerbos – Ración diaria