Calculator

Feeding Amount Calculator

🍽️ Answers both “how much” AND “which days” — live

Never Over- or Under-Feed Again

Tell us roughly how much your worms weigh, and we’ll build you a real feeding schedule — not just a number.

1 lbs
0.25 lb8 lbs
Not sure? A standard 1 lb starter order is roughly 1,000 red wigglers.
💡 Bury food scraps under bedding — it cuts odor and fruit flies almost completely.
0.5 lbs / feeding
Per Feeding 0.5 lbs
Times / Week
Weekly Range 3.5–7 lbs
Daily Max (mature bin) 1 lb
Your suggested feeding days
Rule of thumb: mature red wigglers can eat roughly half to their full body weight in food per week — new bins should start conservatively and increase gradually as the population grows. Always check that the previous feeding is mostly gone before adding more.

How to Use This Calculator

  1. Pick your colony stage — tap "Just Started," "A Few Months In," "Established," or "Thriving Colony" for an instant estimate based on typical growth timelines.
  2. Fine-tune with the slider — if you know roughly how much your worms weigh (or how many you started with), drag the slider to match. 1,000 red wigglers is roughly 1 lb.
  3. Check your portion size — the plate visual fills up to show roughly how much food to add per feeding, so you're not guessing with a kitchen scale.
  4. Follow the calendar — the weekly schedule shows exactly which days to feed based on your colony size, spaced evenly so worms always have fresh food without a backlog building up.

Understanding Your Results

Per Feeding

How much to add each time you feed — spread across multiple smaller feedings rather than one large one, since worms process food gradually.

Times / Week

Smaller colonies get fed less often (every 3-4 days); larger, established colonies can handle more frequent feeding since they process scraps faster.

Weekly Range

A conservative-to-maximum range based on your worm weight — start near the low end and work up as you observe how quickly food disappears.

Daily Max

The upper limit a fully mature, well-established colony could theoretically process in a single day — useful context, not a daily target.

FAQs

What happens if I feed too much?

Uneaten food sits, goes anaerobic, and starts to smell — it's the single most common beginner mistake. If you notice food still visible after your next scheduled feeding day, skip that feeding entirely and wait until it's mostly gone before adding more.

What if I feed too little?

Much safer than overfeeding — worms simply eat their existing bedding and slow their reproduction rate slightly. There's no harm in erring light while you learn your bin's rhythm.

Should I feed on a strict schedule, or just check the bin?

Use the calendar as a starting rhythm, but always do a quick visual check first — if there's still food from last time, skip that feeding regardless of what the calendar says. The schedule is a guideline, not a rule.

Does the type of food change how much I should feed?

Yes, somewhat — watery foods like melon break down fast and can be fed a bit more generously, while dense foods like potato take longer. Chopping or freezing-then-thawing scraps helps most foods break down faster regardless of type.

How quickly should I increase feeding as my colony grows?

Gradually — re-run this calculator every few weeks as you re-estimate your worm weight. Worm populations can double every 60-90 days in good conditions, so your feeding amount should scale up steadily over months, not overnight.

Can I feed my worms every single day?

Only once a colony is large and established — for smaller or newer bins, daily feeding usually outpaces how fast the worms can actually process it, leading to buildup. Stick to the suggested frequency until your colony is clearly keeping up.