Ride A Pet · Fuse Machine
Ride A Pet Fuse Machine calculator
Type in the chances, cost and time from your Fuse menu. See your odds of at least one target pet, how many fusions your coins buy, and what a 90% chance would cost.
The numbers below are one reported preview (3% for the fourth result, 1B coins, 30 minutes, 10B budget). Replace them with yours.
Result for Outcome 4
26.26%
chance of at least one Outcome 4 in 10 fusions (limited by your coin budget)
- Chance of none
- 73.74%
- Most you would spend
- 10B coins
- Machine time
- 5 h
Fusions needed for a given chance
| Chance of at least one | Fusions | Coins | Machine time | Within your limits |
|---|---|---|---|---|
| 50% | 23 | 23B | 11 h 30 min | No |
| 80% | 53 | 53B | 1 d 2 h 30 min | No |
| 90% | 76 | 76B | 1 d 14 h | No |
| 95% | 99 | 99B | 2 d 1 h 30 min | No |
On average a 3.00% chance takes about 33.3 fusions, but that is an average, not a promise: you can get it first time or miss it many times in a row.
Model assumption. Every fusion is treated as independent, with the same chance, cost and time each time. Nobody has verified that the game works this way. Cost does not include the pets you spend.
What is known about the Fuse Machine
Every line names its source and how sure we are. Where sources disagree, we show the disagreement instead of picking a side.
Release
The Fuse Machine arrived with Update 3 on 3 October 2026 at 1:00 PM UTC.
The patch notes say they come from the official Ride A Pet Discord. We did not read the Discord ourselves.
Unlock
The machine appears on the map only after you complete Rebirth 1.
Inputs
Each fusion takes four pets of Legendary rarity or higher. Ethereal pets are accepted.
Cost
Every fusion costs a lot of Cash. The exact amount is shown in the fusion menu and one reported preview showed 1B for its combination.
The 1B figure comes from a screenshot we have not seen ourselves.
Time
Time per fusion: one source says every fusion takes an hour, while the preview example reported to us shows 30 minutes.
It may depend on the combination. Use the time shown in your own fusion menu.
Results
There are 16 limited pets: 3 Legendary, 4 Mythic, 4 Divine and 5 Ethereal.
The patch-notes article lists the counts and its body repeats "a total of 16 limited pets", five of them Ethereal, so it is consistent with itself. We found no second source for it.
Read the full guide · See every source
Facts checked . The game updates often, so check your own fusion menu before you spend anything. Unofficial fan site.
What nobody has confirmed yet
- How are the displayed chances calculated from the four pets you deposit?No source publishes a formula. Pet weight, rarity, Mutation and Trait may all play a part, and none has been measured.
- Is every fusion independent, or is there any pity or streak protection?The calculator assumes independence because nothing else can be modelled. Nobody has tested it.
- How long does each fusion take, and does it depend on the recipe?Sources disagree: one hour versus 30 minutes in a preview.
- When does the limited-time Fuse Machine end?No end date has been published in anything we read.
- Which pets can each fused pet come from?There is no verified recipe table. This is what the recipe log is for.
- Do the same four pets always give the same preview?Needed before a recipe can be called reproduced.
Seen a recipe repeat? Send it to the recipe log.
Fuse odds explained
The formula, a table of how many fusions each chance needs, and why an average is not a promise.
Fused pets
The 16 limited pets by rarity, the three names that have been published, and what is still missing.
Recipe log
What it takes for a recipe to count as reproduced, and how to send one.
FAQ
What does the Fuse Machine do in Ride A Pet?
You put in four pets of Legendary rarity or higher, pay Cash and wait. In return you can get one of the limited fused pets that only the machine gives. The fusion menu shows the possible results with their chances before you commit.
How do I unlock the Fuse Machine?
Complete Rebirth 1. The machine then appears on the map near the Ride Pet With Friend NPC. Rebirth 1 itself is reported to need 1 million Cash and the Horse pet.
How much does a fusion cost and how long does it take?
Every fusion costs a lot of Cash, and the exact amount is shown in the fusion menu. One reported preview showed 1B coins. On time, sources disagree: one says an hour, a preview example shows 30 minutes. Copy both numbers from your own menu.
Does fusing guarantee the pet I want?
None of the sources we read describes a guarantee. The preview lists a chance for each possible result, so every fusion is a roll. The calculator on this site shows how many rolls you need for a 50, 80, 90 or 95 percent chance of at least one hit.
How many fusions do I need for a 90% chance?
It depends only on the chance of the result you want. At 3% per fusion it is 76 fusions. At 10% it is 22. At 25% it is 9. The odds page has the full table and the formula.
Is this calculator official, and does it use my game account?
No. Pet Fuse Lab is a fan site with no connection to Roblox or the developer. It never asks for your account and never reads the game. You type the numbers in yourself.
Are my numbers sent anywhere?
No. Calculations run in your browser. Saved scenarios stay in your browser’s local storage, and a shared link carries the numbers inside the link after the # sign, which browsers do not send to servers.