ARK: Survival Ascended Breeding Calculator
Plan breeding pairs and predict offspring stats
Popular (27)

Rex
Egg-laying · base maturation 3d 20h
Stacks 2.5× on hatch and mature speed.
Egg Incubation
Time
4h 59m
300 min
Hatches
Tue, May 5, 4:03 PM
from now
Temperature
32°C – 34°C
ideal range
Then mature for
3d 20h
from hatch / birth
Maturation Phases
Baby
Tue, May 5, 4:03 PM
~0s after hatch
Juvenile
Wed, May 6, 1:18 AM
~9h 15m after hatch
Adolescent
Thu, May 7, 2:21 PM
~1d 22h after hatch
Adult
Sat, May 9, 12:38 PM
+3d 20h from hatch
Phase boundaries: Baby 0–10%, Juvenile 10–50%, Adolescent 50–100%. Babies must be hand-fed; juveniles can eat from a feeding trough.
Imprint Schedule
11 cuddles · 9.09% each
| # | Time after hatch | Clock time | Imprint % |
|---|---|---|---|
| 1 | 8h | Wed, May 6, 12:03 AM | 9.09% |
| 2 | 16h | Wed, May 6, 8:03 AM | 18.18% |
| 3 | 1d | Wed, May 6, 4:03 PM | 27.27% |
| 4 | 1d 8h | Thu, May 7, 12:03 AM | 36.36% |
| 5 | 1d 16h | Thu, May 7, 8:03 AM | 45.45% |
| 6 | 2d | Thu, May 7, 4:03 PM | 54.55% |
| 7 | 2d 8h | Fri, May 8, 12:03 AM | 63.64% |
| 8 | 2d 16h | Fri, May 8, 8:03 AM | 72.73% |
100% Imprint Bonus
Stat bonus
+20%
HP, Melee, Movement Speed, Torpor
Imprinter rides
+30%
extra damage + resist while ridden
Not affected
Stamina, Oxygen, Crafting Skill
imprint never modifies these
Imprint bonus scales linearly: 50% imprint = half the bonus. The +30% rider bonus applies only when the imprinter character themselves is mounted.
Mating Cooldown
Min
18h
Wed, May 6, 5:03 AM
Max
2d
Thu, May 7, 11:03 AM
Multiplier applied
1×
MatingIntervalMultiplier
Mutation Probability
Eligible to contribute mutations.
Eligible to contribute mutations.
Per breeding
7.31%
3 rolls × 2.5%
Per mutation
+2 levels
random of 6 stats + color region
Color mutation
10% / 90%
dye colors / normal colors
The 7.31% canonical figure applies when both parents have combined counters under 20. When one is over the cap, mutation chance roughly halves per ark.wiki.gg/Mutations. ASA mutation cap is 255 mutated levels (separate from wild levels).
ARK: Survival Ascended Breeding Calculator
Plan every step of breeding any of 272ARK: Survival Ascended creatures — from egg incubation through full imprint. Set your server's EggHatchSpeedMultiplier, BabyMatureSpeedMultiplier, BabyCuddleIntervalMultiplier, and BabyImprintingStatScaleMultiplier and the calculator instantly shows hatch time, mating cooldown, every cuddle on the imprint schedule with exact clock times, and the final 100%-imprint stat bonus. Single-player toggle stacks the 2.5× ASA bonus on top. Data verified against ark.wiki.gg (April 2026).
How Imprinting Actually Works
A baby requests one of three care types — cuddle, walk-with, or comfort food — at a fixed interval. The default interval is 8 hours, modified by BabyCuddleIntervalMultiplier. Each successful care request gives a slice of the 100% imprint, calculated as:
cuddleInterval = 8h × BabyCuddleIntervalMultiplier totalCuddles = floor(maturationTime / cuddleInterval) imprintPerCare = 100% / totalCuddles × BabyImprintingStatScaleMultiplier
A 1× Parasaur (26.56h maturation) with default 8h cuddle interval gets 3 cuddles at 33.33% each. A Giga (11d 16h maturation) gets 35 cuddles at 2.85% each — miss one and you cap at 97.15% unless you raise the imprint stat scale.
The 7.31% Mutation Number, Explained
Each breeding makes three independent mutation rolls, each at 2.5%. The probability that at least one roll succeeds is:
P(at least 1 mutation) = 1 - (1 - 0.025)³
= 1 - 0.9269
= 0.0731 // 7.31%Both parents must have combined matrilineal + patrilineal counters under 20 for full eligibility. If only one is eligible, chance roughly halves. Each mutation adds +2 mutated levels to a random stat plus a random color-region change (10% chance dye, 90% normal palette). ASA tracks mutated levels separately from wild — cap is 255 mutated.
Stat Inheritance in ASA — 55 / 45
For each of the six inheritable stats (Health, Stamina, Oxygen, Food, Weight, Melee Damage), the baby has a 55% chance to take the higher parent's value and 45% to take the lower. This was changed from the older 70/30 ratio in ASE. In ASA, the stronger wild stat and stronger mutated stat are always inherited together — you cannot end up with the strong wild value but the weak mutated counter.
The probability of getting the "perfect" baby that takes the higher value on every stat is therefore 0.55⁶ = 2.77%. Most breeders aim for one stat at a time and stack across multiple breeding pairs.
Server Multiplier Reference
| Setting | Default | Effect |
|---|---|---|
| EggHatchSpeedMultiplier | 1.0 | Speed of egg incubation; also gestation on most server presets |
| BabyMatureSpeedMultiplier | 1.0 | Speed from hatch/birth through adult |
| BabyCuddleIntervalMultiplier | 1.0 | Multiplies the 8h default interval. Lower = more frequent cuddles |
| BabyImprintingStatScaleMultiplier | 1.0 | Multiplies per-cuddle imprint % (allows hitting 100% with fewer cuddles) |
| MatingIntervalMultiplier | 1.0 | Multiplies post-mating cooldown. 0.5 = half cooldown |
| useSingleplayerSettings | false | When true, stacks 2.5× on hatch and mature speeds (ASA SP default) |
Related ARK Tools
- Taming Calculator — food, time, narcotics for any wild creature.
- Kibble Chart — every kibble recipe and which dino lays the egg.
- Imprint Calculator — focused cuddle scheduler.
- Server Config Generator — generate GameUserSettings.ini with these multipliers.
Host Your Own ARK:SA Server
Tired of 11-day Giga raises? Run your own cluster with 10× hatch and 25× maturation. Our ARK:SA hosting includes:
- • GameUserSettings.ini editor with breeding multipliers in the panel
- • Cluster support — share dinos between The Island, Scorched, Aberration, Extinction
- • Mod installer (CurseForge integration) for breeding QoL mods like S+, Awesome SpyGlass!
- • Auto-restart + daily backups so you never lose a 50-roll mutation line
Frequently Asked Questions
ARK: Survival Ascended Breeding Calculator — FAQ
Is this ARK: Survival Ascended Breeding Calculator free to use?
Yes, the ARK: Survival Ascended Breeding Calculator is 100% free — no signup required, no hidden fees, no downloads. Everything runs in your browser.
How accurate is the ARK: Survival Ascended Breeding Calculator?
Values are pulled from the ARK: Survival Ascended game files and community-verified formulas. Results match what you see in-game, and we update the tool when the game gets major patches.
Can I host a ARK: Survival Ascended server with XGamingServer?
Yes. XGamingServer offers instant ARK: Survival Ascended server hosting with mod support, automatic backups, DDoS protection, and 24/7 support. All popular game settings are pre-configured.
Does the Breeding Calculator work on mobile?
Yes, the Breeding Calculator is fully responsive and works on desktop, tablet, and mobile browsers.
You might also need
ARK: Survival Ascended server admin docs
Read the full ARK: Survival Ascended server docs →
Step-by-step guides for installing mods, configuring your server, joining, troubleshooting, and admin commands.

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