Box Size
25" x 17"
Monthly Cost
$77.73
Per Change
13.9 L
Changes/Mo
10.1
25" x 17"
$77.73
13.9 L
141.3 L
Recommended Box
25" x 17"
2" litter depth \u2022 10.1 changes/month
Monthly Cost by Litter Type
Inputs
Result
A 4-lb Holland Lop needs a 16×12-inch box minimum. With wood pellets at 1.5-inch depth and changes every 3–4 days, monthly litter usage is about 12 lbs ($3–$5/month).
Inputs
Result
A 14-lb Flemish Giant needs a 28×20-inch box. Many owners use concrete mixing tubs as they are cheap and the right size. Monthly paper-based litter costs about $20–$25.
The litter box should be at least 1.5 times your rabbit's body length. A small rabbit (3–5 lbs) needs a box at least 16×12 inches, while a large breed (10+ lbs) needs 24×18 inches or larger. The rabbit must sit comfortably inside with room to turn around.
| Rabbit Size | Weight | Min Box Size (L×W) |
|---|---|---|
| Dwarf | 2–4 lbs | 14×10 in |
| Small | 4–6 lbs | 16×12 in |
| Medium | 6–9 lbs | 20×14 in |
| Large | 9–12 lbs | 24×18 in |
| Giant | 12+ lbs | 28×20 in |
Fill the litter box 1–2 inches deep with rabbit-safe litter, then top with a generous layer of hay. Rabbits eat while using the litter box, so the hay layer encourages proper litter habits. Deeper litter (2–3 inches) reduces cleaning frequency.
| Litter Type | Safe for Rabbits? | Cost/Month |
|---|---|---|
| Paper-based (Carefresh) | Yes | $15–$25 |
| Wood pellets (horse bedding) | Yes | $5–$8 |
| Hay-only | Yes | $10–$20 |
| Clay clumping | NO – Dangerous | N/A |
| Cedar/pine shavings | NO – Toxic | N/A |
A single rabbit uses approximately 10–20 lbs of litter per month with changes every 3–4 days. Wood pellets are the most economical option at $5–$8/month, while paper-based litters cost $15–$25/month. Buying 40-lb bags of wood stove pellets saves significantly.
| Litter Type | Monthly Usage | Monthly Cost |
|---|---|---|
| Wood pellets | 12–18 lbs | $5–$8 |
| Paper-based | 10–15 lbs | $15–$25 |
| Hay-only method | 15–20 lbs | $10–$20 |
Bonded rabbit pairs can share a litter box, but it should be sized for the larger rabbit and increased by 50% in area. Many owners provide two litter boxes for a pair – one in the living area and one in the enclosure. Unbonded rabbits should never share.
| Setup | Box Size Needed | Change Frequency |
|---|---|---|
| Single rabbit | 1.5× rabbit length | Every 3–4 days |
| Bonded pair | 2× rabbit length | Every 2–3 days |
| Two boxes (pair) | 1.5× each | Every 3–4 days each |
Read our guide
Read our guide
Read our guide
Tools for housing, feeding, and care of rabbits, guinea pigs, hamsters, and more.
Last Updated: Mar 9, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.