HOW IT WORKS
How to use this tool
- 1Choose health, movement-speed attribute or jump-strength attribute.
- 2Enter both parent values inside the shown Java attribute range.
- 3Compare the reflected distribution’s mean and possible minimum/maximum.
Minecraft
Minecraft Horse Breeding Calculator
Calculate a foal’s expected health, raw movement speed or jump strength and possible range using the Java breeding rule introduced in 1.19.4.
Last updated:
Local browser processing • no upload required
Choose a Java attribute and enter both parents in the displayed units and natural range.
Foal estimate
- Expected attribute value
- 0.22000
- Lowest possible attribute
- 0.16625
- Highest possible attribute
- 0.27375
Java breeding rule introduced in 1.19.4. Speed and jump use raw attributes, not blocks/s or jump height. The mean includes boundary reflection; individual foals are random. Bedrock is not modeled.
Next Creation Steps
Worked example
Compare foal attribute ranges with a reproducible example
This uses the Java breeding rule introduced in 1.19.4, in raw attribute units. It does not estimate Bedrock genetics or convert jump strength to jump height.
- Choose health and enter parents with 20 and 24 hit points. The expected value is 22, with a possible range of 17.75–26.25 hit points.
- For speed, use the raw movement-speed attribute, such as 0.20 and 0.24. Do not enter blocks per second; jump mode likewise takes jump strength, not blocks of height.
- Near the natural limits, the game reflects out-of-range offspring values back inside. The calculated mean includes that reflection; it is not a promise for an individual foal.
Quick answer
How is a foal's stat determined?
The Java rule introduced in 1.19.4 starts with the parental midpoint and adds a three-uniform random variation scaled by their gap plus 30% of the natural range. Values beyond the natural limits are reflected back inside.
Key specifications
- Processing
- In your browser
- Tool files
- Processed on your device
- Access
- Free; no account required
- Result
- On-screen calculation; no file export
FAQ
FAQ
How is a foal's stat determined?
The Java rule introduced in 1.19.4 starts with the parental midpoint and adds a three-uniform random variation scaled by their gap plus 30% of the natural range. Values beyond the natural limits are reflected back inside.
What are the natural stat ranges?
Health uses 15–30 hit points; movement speed uses the raw attribute 0.1125–0.3375; jump strength uses 0.4–1.0. Speed is not entered in blocks/second, and jump strength is not jump height.
Can a foal be faster than both parents?
Yes, within the natural attribute limits. Near either limit the reflection changes the distribution, so the exact expected value can differ from the parents’ midpoint.
Does golden apple food affect stats?
Breeding food makes eligible horses enter love mode; it does not choose the random genetic variation. This model depends on the two parent attributes and the Java breeding rule.
How many breedings should I expect?
Breeding has a 5-minute cooldown per parent pair, so line improvement takes patience.