Try the tool above
Use the free tool at the top of this page first, then read the guide below to understand the result and use it well. Pellets are the easiest rabbit food to overfeed, because a small scoop looks harmless while the calories add up fast. This calculator turns weight and age group into a daily gram amount for adults and seniors, and explains why young rabbits are the exception with free feeding while they grow.
How to use it
Start by entering the numbers the tool asks for, using real measurements where you can, then press the calculate button and read the result box carefully. Check the result against common sense for your own setup, adjust one input at a time if the answer surprises you, and use the result as a daily plan rather than a one-off number.
Worked example
For example, a two kilogram adult rabbit gets 40 grams of pellets per day, while a senior of the same weight gets 30 grams. A young rabbit under seven months is different and can eat freely, because growth needs far more energy than adult maintenance.
How the calculation works
The tool uses a simple, transparent rule based on the numbers you enter, so you can check the answer by hand if you ever doubt it. It does not guess, hide its working, or pretend to know more than the inputs allow, and that honesty is deliberate, because a pet care plan you can follow matters more than a complicated formula you cannot trust. If you change one input, such as weight, fish count, or tank size, the result moves in the direction you would expect, which is a good quick check that you typed the numbers correctly.
Why this matters
Measured pellets matter because they leave room for hay, which is the food that protects teeth and digestion. When pellets fill the rabbit up, hay intake falls, teeth grow long, and weight creeps up, all from a well-meaning extra scoop.
Keep the routine going
The best plan is the one you actually repeat, so tie the result to something you already do every day, such as the morning feed, the evening tidy, or the weekly shop. Keep the tool result visible for the first two weeks, note any day you miss, and do not restart from scratch after a missed day, because one missed day matters far less than giving up the routine entirely and starting again next month.
Three tips that help
Weigh the daily portion once with scales and mark the scoop, so every family member serves the same amount. Split pellets into morning and evening servings, because two small meals suit rabbit digestion better than one large pile. Choose plain grass-based pellets without coloured mixes, since muesli mixes let rabbits pick out sweet bits and leave the healthy parts.
Common mistake to avoid
Never top up the bowl whenever it looks empty, because pellets should be a measured part of the day, not food available all day for adults.
Frequently asked question
How many pellets should a rabbit eat per day? About 20 grams per kilogram for adults and 15 grams per kilogram for seniors, measured daily, as calculated here, while young rabbits eat freely.
Put the result into practice
Save or print your result, put it where the person who feeds or cares for your animals will see it, and review it whenever weight, fish count, or tank setup changes. Small steady routines beat perfect plans that nobody follows, so keep the plan simple, repeat it daily, and adjust slowly when the numbers tell you something has changed.