Penguin Income Calculator
For the Roblox game Steal An Egg. Type your Penguin's weight and mutations to see what it earns and how long it takes to afford your next upgrade.
Updated · game data from the wiki as of 30 September 2026 · changelog
Short answer: a Penguin earns $140 per second at its base weight of 16 kg with no mutations. That is $504K per hour. Every doubling of its weight multiplies income by about 1.53, so a Golden Penguin at twice the base weight (32 kg) earns $536.66/s. Type your own Penguin's weight and mutations below.
Penguin at a glance
| Rarity | Rare |
|---|---|
| Biome or egg | Snow |
| Base income | $140/s · $504K/hour · $12.1M/day |
| Base weight | 16 kg (wiki calculator data; no second source) |
| Rank by base income | #4 of 10 Rare pets in our data |
| Egg grow time | 45s (wiki pet page; unverified) |
| How sure | Base income: the wiki's calculator data and the Penguin wiki page agree. Steal An Egg Time lists $140/s (matches; marked "unconfirmed" there). |
Penguin income by weight
No mutations, no boosts. The size multiplier is (weight ÷ 16 kg)37/60 up to 125× base weight, then grows more slowly.
| × base | Weight | Size | Per second | Per hour |
|---|---|---|---|---|
| 1× | 16 kg | ×1.00 | $140 | $504K |
| 2× | 32 kg | ×1.53 | $214.67 | $772.8K |
| 5× | 80 kg | ×2.70 | $377.71 | $1.36M |
| 10× | 160 kg | ×4.14 | $579.15 | $2.08M |
| 50× | 800 kg | ×11.16 | $1.56K | $5.63M |
| 125× | 2,000 kg | ×19.64 | $2.75K | $9.9M |
| 250× | 4,000 kg | ×25.91 | $3.63K | $13.06M |
Penguin income by mutation
At base weight (16 kg). With two mutations the wiki disagrees with itself on whether they add or multiply, so both are shown.
| Mutation | If they add | If they multiply |
|---|---|---|
| None | $140/s | same |
| Silver | $168/s | same |
| Golden | $350/s | same |
| Rainbow | $490/s | same |
| Golden + Bloom | $385/s | $437.5/s |
| Rainbow + Parasite | $770/s | $1.47K/s |
Worked example: a Golden Penguin at twice base weight
- Weight ratio: 32 kg ÷ 16 kg = 2.
- Size multiplier: 237/60 = ×1.5333.
- Golden multiplies by 2.5, so income = $140 × 1.5333 × 2.5 = $536.66/s, which is $1.93M per hour.
- Saving for the Flame Treadmill ($250K) from $0 with only this pet: 7m 45s. A plain Penguin at base weight would take 29m 45s.
Common mistakes
- Expecting income to double with weight. A Penguin at 32 kg earns $214.67/s, not double the base. To double its income it has to weigh about 3.08 times the base: 50 kg.
- Forgetting the 125× soft cap. For a Penguin that is 2,000 kg. Past it, extra weight still helps but much less: doubling from 125× to 250× adds only about 32%.
- Assuming mutations multiply. A Golden + Bloom Penguin at base weight earns $385/s if mutations add (the wiki calculator's rule) and $437.5/s if they multiply. Plan with the lower number until it's confirmed.
- Counting the x2 gamepass twice. Tick it once. If you copy this pet's income into the treadmill calculator with x2 already included, leave x2 unticked there.
Questions
How much money does a Penguin make in Steal An Egg?
At its base weight of 16 kg with no mutations, a Penguin makes $140 per second, or $504K per hour. Heavier and mutated Penguins make more: a Golden one at twice the base weight makes $536.66 per second.
How much is a Penguin worth in Steal An Egg?
Steal An Egg has no trade window, so there's no reliable trade value. What a Penguin is worth to you is the money it earns: $504K per hour at base weight, and more for a heavier or mutated one. Enter yours in the calculator above.
How heavy does a Penguin need to be to double its income?
About 3.08 times its base weight, because income grows with weight to the power 37/60. For a Penguin that is 50 kg.
What is the best mutation for a Penguin?
Rainbow is the strongest hatch colour at ×3.5: a Rainbow Penguin at base weight earns $490 per second. With Parasite on top it reaches $770 per second if mutations add.
Other pet calculators
Have more than one pet? The Steal An Egg pen calculator adds up your whole pen. Or use the weight calculator, mutation calculator, fuse calculator or treadmill calculator.