Next scheduled trigger times
- Trigger 17m 12s
- Trigger 214m 24s
- Trigger 321m 36s
- Trigger 428m 48s
- Trigger 536m
Ability planner · reviewed July 30, 2026
Grow a Garden Pet Ability Calculator: Cooldown & Procs
Calculate an effective ability cooldown, triggers per hour, total session attempts, expected successful procs, and the chance of at least one success. Use the values shown by your current pet instead of relying on an opaque universal database.
Current-patch inputs · no hidden pet database
Pet ability cooldown and proc calculator
Enter the cooldown and chance shown by your current pet, then compare additive or multiplicative reductions. The result estimates scheduled triggers and independent successful procs; it does not infer pet-specific age scaling.
Effective cooldown
7m 12s
Stacked reduction before floor
28%
Scheduled triggers / pet
8
Total ability attempts
8
Attempts / hour
8.33
Expected successful procs
2
Chance of at least one success
89.99%
Expected successful procs / hour
2.08
Average successful proc interval
28m 48s
Cooldown floor check
The raw stacked cooldown is 7m 12s; the entered floor does not change it.
Expected procs are long-run averages, not guarantees. The probability result assumes independent attempts with the same chance. Animation time, targeting rules, hunger, server lag, ability queues, shared cooldowns, pity systems, and pet-specific caps are excluded unless already reflected in your displayed inputs.
Cooldown
Start from the displayed timer
Use seconds from one unchanged pet state. Convert 10 minutes to 600 seconds. A timer already modified by a toy or mutation must not receive that same reduction twice.
Frequency
Count only complete triggers
Session attempts use complete cooldown intervals. Enable “ready at start” only when the ability can fire immediately at the beginning of your measurement window.
Probability
Separate attempts from success
A pet can activate without its chance-based effect succeeding. The tool reports scheduled attempts, mathematical expectation, and cumulative hit probability as different values.
Stacking rule
Additive vs multiplicative cooldown reduction
Suppose a pet has a 600-second timer and two reductions of 20% and 10%. The two common interpretations do not produce the same cooldown.
| Rule | Calculation | Result | Meaning |
|---|---|---|---|
| Additive | 600 × (1 − 0.20 − 0.10) | 420 seconds | Percentages combine into one 30% reduction. |
| Multiplicative | 600 × 0.80 × 0.90 | 432 seconds | Each reduction applies to the remaining timer. |
The calculator does not claim one rule applies to every Grow a Garden effect. Compare a controlled in-game observation against both results, then select the matching rule.
How the ability proc math works
Effective cooldown
The selected stacking rule reduces the entered base timer. A known pet-specific floor then clamps the result when the raw timer would fall below it.
Session attempts
Completed session seconds are divided by effective cooldown and rounded down. Independent active copies multiply that count.
Expected successes
Total attempts are multiplied by the success probability. This is a long-run mean, not a promise for one session.
At least one success
Independent attempts use 1 − (1 − p)^n, where p is success chance per trigger and n is the total number of scheduled attempts.
Evidence boundary
Current pet inputs beat an unverifiable universal formula
Pet ability stats can depend on pet identity, age, weight, mutation, toys, hunger, active buffs, server behavior, and patch. Public calculator databases disagree on age caps, stat labels, and scaling claims. This page therefore models the cooldown and chance you can observe now. It does not invent missing pet-specific values or label secondary data as official live telemetry.
If your next observed trigger does not match the projection, update the base timer, stacking rule, or floor before using the result for a longer session.
Pet ability calculator FAQ
What should I enter as the base pet ability cooldown?
Enter the cooldown displayed for the exact pet state you want to model before applying the separate reductions entered below. Keep age, weight, mutation, toys, hunger, and patch state consistent. If the displayed number already includes a buff, do not apply the same buff again.
Do Grow a Garden cooldown reductions stack additively?
The answer can depend on the effect and patch. Additive stacking combines the percentages before reducing the timer. Multiplicative stacking applies each reduction to the remaining timer. Use the rule supported by your current in-game comparison; the calculator exposes both instead of silently choosing a universal rule.
What does expected successful procs mean?
It is the number of successes expected over many identical sessions: total scheduled attempts multiplied by the per-trigger chance. A result of 2 does not guarantee exactly two successes in one session.
Does the calculator know every pet's Age 500 ability cap?
No. Pet-specific cooldown floors and ability caps are not inferred. Enter a known floor when you have current evidence, or use zero when it is unknown and treat the result as an unclamped scenario.
Egg Hatch Time & Odds
Plan the hatch schedule, cost and probability of obtaining the pet before modeling its ability here.
Calculate egg hatch odds →Weight & Age 500
Project pet weight and model an age target from your own observations before entering a current ability timer here.
Open the pet age calculator →Pet XP Calculator
Sum level requirements and estimate continuous leveling time before measuring the ability at a new age.
Calculate pet XP time →Pet Mutation Odds
Keep Mutation Machine roll probability separate from a chance-based pet ability proc.
Calculate mutation odds →