Updated October 20, 2026. Instructions checked against the live browser tool.
The Grow a Garden pet ability calculator on this site estimates a selected pet’s ability statistics from its age, weight and the modifiers available in the interface. This guide explains the actual controls, shows a reproducible baseline, and gives you a worksheet for comparing the estimate with observations in the game.
Accuracy limit: this is a fan-made calculator. The example below documents what this site’s tool displayed, not an independently verified statement about the current game. A game update, a different modifier or an outdated pet entry can change the relationship between the estimate and real play.
Use the controls that are present
- Open the main calculator and select Pet Ability in its tool navigation.
- Use Search pets… to filter the list, then select a pet. Confirm the “Selected Pet” label before entering measurements.
- Enter the pet’s Age and Weight as shown in game. Do not substitute a different pet’s weight or a projected value without recording that assumption.
- Review the Mutation, Other buffs and Toys & extras options. Start with a baseline without extra modifiers, then change one option at a time.
- Select Calculate and read the result below the controls. Keep the full descriptive sentence alongside the numbered statistics.
- Use Show Ages 1–125 if you want to inspect the tool’s age table. Treat future values as model projections.
The current interface does not provide free-text ability, duration or cooldown inputs. Those quantities come from the selected pet’s model and are shown in the output. You can record observed values separately to check that model; entering them directly is not part of this tool’s workflow.
A reproducible Cat baseline
During the October 20 interface check, selecting cat with Age 1 and Weight 1.00, without selecting additional modifiers, produced the following displayed values. Repeat these inputs to compare your result with the baseline.
| Displayed quantity | Tool result | How to read it |
|---|---|---|
| Interval in the description; Stat1 | 79.00 seconds | The description says “Every 79.00s”. Compare this with observed activations. |
| Nap duration; Stat2 | 10.10 seconds | The described duration of the effect. |
| Range; Stat3 | 10.10 studs | The distance stated for affected new fruit. |
| Size factor; Stat4 | 1.25× | The description says new fruit in range will be larger by this factor. |
The same result included a separate panel labelled Model projection at Age 100 (Weight: 10): 70.00 seconds, 11.00 seconds, 11.00 studs and 1.27×. That panel uses a different age and weight. It is not a promise that your age-1 pet will reach weight 10, nor a controlled comparison of age alone.
Translate statistics into a practical comparison
A 1.25× factor means 25 percent above the baseline quantity described. It does not establish a 25 percent increase in total crop sale revenue: crops may be outside the range, may not be new during the effect, or may use a different value relationship. Keep size, sale value, activation interval and effect duration separate.
For a simple timing illustration, a 10.10-second effect divided by a 79-second interval is about 12.8 percent. This ratio describes only that hypothetical timing pattern. It assumes the interval represents a full repeating cycle, triggers are reliable, and effects do not overlap. It is not a measured garden-wide benefit or a guarantee of the game’s activation schedule.
Compare two settings fairly
Save a baseline using one pet, one age and one weight. Then change a single modifier while leaving the other inputs fixed. Record both outputs, including units. If you change the pet, weight and mutation simultaneously, you cannot tell which change caused the result.
| Record | Baseline | Comparison |
|---|---|---|
| Pet, age, weight | ______ | ______ |
| Mutation and buffs | ______ | ______ |
| Full output description | ______ | ______ |
| Interval, duration, range and effect | ______ | ______ |
| Observed game result and date | ______ | ______ |
Numbered labels such as Stat1 are not universal units across all pets. Read the description for the selected pet before comparing a number with another pet’s output. A smaller interval and a larger effect may both be desirable, while distance or duration answer different questions.
Check the estimate in game
- Write down the current ability description, the pet’s age and weight, all active modifiers, and the date.
- Observe several activations under similar conditions. Record each interval instead of relying on one unusually fast or slow activation.
- Record whether the target was in range and eligible when the ability activated.
- Compare the observation range with the calculator’s description. A repeatable mismatch is more useful than an isolated screenshot.
Do not average away a change in game conditions. If a boost expires or an update changes the description, start a new observation set. Do not use the calculator alone to establish a pet’s trade price or rarity.
Use the related tools for different questions
The pet weight guide explains a separate linear projection from two observations. The XP planner uses your measured XP gain, while the hatch-time tool models a continuous speed bonus. These models do not validate the ability dataset.
Report a mismatch through the contact page with the selected pet, complete inputs, displayed output, expected result and supporting observation. Read the data and accuracy policy for the site’s review process.
The separate age table uses the ability tool’s stored weight-scaling assumption, not the two-observation Pet Weight planner. It is not proof that a particular pet will reach those weights. The Mutation and Other buffs controls currently share one single-choice group; selecting one replaces the previous choice in that group.