Carrot Tower Defense Summon Calculator
Estimate how many summons your carrot balance buys and expected outcomes for Goo Rabbit (1.5%) and Ninja Rabbit (0.1%) when featured.
Last checked: June 2026
Summoning in Carrot Tower Defense is pure RNG at published rates — this calculator turns your carrot balance into estimated pull counts and expected copies of headline units. Enter your lobby carrots and cost per summon (check the in-game burrow for live pricing). Results show estimated total pulls, expected Goo Rabbit pulls at 1.5%, and expected Ninja Rabbit pulls at 0.1% when those units are in rotation. Read the full summon guide for rotation strategy and tier list for pull priority.
Summon Calculator
Estimated pulls
50
Expected Goo Rabbit (1.5%)
0.75
Expected Ninja Rabbit (0.1%)
0.05
Expected value = pulls × rate. Actual results vary; 0.1% Ninja can require thousands of pulls without a drop.
Estimated pulls
50
Expected Goo Rabbit (1.5%)
0.75
Expected Ninja Rabbit (0.1%)
0.05
Expected value = pulls × rate. Actual results vary; 0.1% Ninja can require thousands of pulls without a drop.
How the Calculator Works
Estimated pulls = floor(total carrots ÷ cost per summon). We use floor because partial carrots cannot buy another pull. Expected Goo copies = pulls × 0.015. Expected Ninja copies = pulls × 0.001. These are statistical averages, not guarantees — binomial RNG means you might pull zero Ninjas across 500 attempts or get lucky on pull ten.
Rates apply only when Goo Rabbit or Ninja Rabbit appear in the featured rotation. Pulling off-banner wastes carrots — wait for banner confirmation via official Discord or in-game summon UI before spending banks built from economy farming and Extreme 500-carrot clears (Extreme guide).
Sample Scenarios
- Vault + early wins (~2,000 carrots): ~20 pulls at 100 cost — expect ~0.3 Goo, ~0.02 Ninja. Enough for commons, not a reliable S-tier chase.
- Extreme clear (500 carrots): ~5 pulls — treat as bonus, not a banner session.
- 10,000 carrot bank: ~100 pulls — expect ~1.5 Goo on average; Ninja still unlikely at ~0.1 expected copies.
- 100,000 carrot grind: ~1,000 pulls — Ninja expected value ~1.0; still not guaranteed due to variance.
Carrot Income to Feed the Calculator
Fund summons through match wins, Farmer Bunny in-match income (economy build), vault code 1416 (vault codes), and repeatable Extreme farming (Extreme build). Promo codes may add carrots when developers enable redemption — codes status. Compare whether your next summon should be economy or DPS with unit comparison.
Calculator Limitations
We do not model pity systems unless Crumbling Crunchy Games adds documented pity — check latest update after patches. Duplicate conversion rates and off-banner pools are excluded. Cost per summon may change with balance updates; always verify live burrow pricing. Never trust third-party "summon hack" tools — script risks include account compromise.
Use this tool to set realistic budgets before Goo Rabbit banners (1.5%) and long Ninja Rabbit grinds (0.1%). Pair numbers with gameplay fundamentals from noob to pro so summons amplify winning teams instead of replacing placement skill.