Fish to Human Age Converter
Human Age Equivalent
Summary
Certificate
| Species | Expected Lifespan (Years) |
|---|---|
| Goldfish | 10-30 |
| Guppy | 3-5 |
| Betta | 3-5 |
| Molly | 3-5 |
| Swordtail | 3-5 |
| Platy | 3-5 |
| Neo NTetra | 5-10 |
| Zebr ADanio | 3-5 |
| Corydoras | 7-15 |
| Pleco | 10-15 |
| Angelfish | 10-12 |
| Africa NCichlid | 5-10 |
| Oscar | 10-15 |
| Dwar FGourami | 4-6 |
| Pear LGourami | 4-6 |
| Discus | 10-18 |
| Harlequi NRasbora | 5-6 |
| Cherr YBarb | 5-7 |
| Blac KSkir TTetra | 5-6 |
| Empero RTetra | 5-6 |
| Cardina LTetra | 5-6 |
| Cong OTetra | 5-6 |
| Ros YBarb | 5-7 |
| Gian TDanio | 5-6 |
| Rainbowfish | 4-5 |
| Whit EClou DMinnow | 5-8 |
| Endle RLivebearer | 2-3 |
| Bristlenos EPleco | 7-15 |
| Clow NLoach | 15-20 |
| Otocinclus | 3-5 |
| Kuhl ILoach | 8-10 |
| Bumblebe EGoby | 3-5 |
| Gree NTerror | 8-10 |
| Firemout HCichlid | 8-10 |
| Germa NBlu ERam | 3-4 |
| Kribensis | 5-8 |
| Peacoc KCichlid | 5-7 |
| Pictu SCatfish | 6-8 |
| Angelicu SPleco | 6-8 |
| Cardinalfish | 3-5 |
| Clownfish | 6-10 |
| Firefis HGoby | 3-4 |
| Yello WTang | 20-30 |
| Blu ETang | 15-30 |
| Mandari NGoby | 10-15 |
| Roya LGramma | 6-8 |
| Bangga ICardinalfish | 3-5 |
| Neo NGoby | 2-5 |
| Clow NTriggerfish | 8-12 |
| Flam EAngel | 5-7 |
Convert Your Fish’s Age to Human Years! Accurately and Easily
Wondering “how old is my fish in human years?” Our fish age to human years calculator uses the latest species-specific fish aging curves to give you a precise answer. Simply enter your fish's species, age, body condition, activity level, and environment to see an instant, personalized result.
How Our Fish Age to Human Years Calculator Works
Not all fish follow the same timeline when it comes to maturity. In the first year, fish develop at a rapid pace. After that, they age more gradually based on their species’ average lifespan. Our species-specific fish aging model adjusts for factors like nutrition and environment to reflect real-life health outcomes.
Why Lifestyle and Health Matter for Fish Aging
Your fish’s diet, activity, and tank environment all influence their aging process. Clean water and a stress-free tank can help your fish live longer, healthier lives.
Life Stage Labels & Milestones
Once you know your fish’s human-equivalent age, you can celebrate important milestones. Whether your fish is a Fry, Juvenile, Adult, or Senior, our tool adds a life stage label that helps you understand their unique needs at each phase.
Download a Personalized PDF Certificate
Share your fish’s achievement with friends and family! Our free, printable certificate highlights their name, species, life stage, and “human age.”
Frequently Asked Questions
How accurate is the fish age to human years calculator?
While every fish is unique, our methodology for “how old is my fish in human years” offers the most comprehensive online tool available.
Can I use this tool for mixed or unknown species?
Yes, simply select the closest match or use the average for similar species. Our average lifespan curve yields a close approximation, making this the go-to fish age to human years calculator for hobbyists and aquarists.
What is “species-specific fish aging” and why does it matter?
Different species have different lifespans and growth rates. Goldfish and guppies, for example, age at different paces. Our species-specific fish aging algorithms account for these nuances, giving you a more accurate human-year equivalent.
How often should I recalculate my fish’s age?
Re-run the calculator whenever your fish experiences a major change, like a new tank, diet, or after illness, or at least every six months to track aging and health progress.