Tap the relation buttons (father, mother, husband, wife, son, daughter, elder/younger brother, elder/younger sister) to build a chain from yourself, and the app shows how you address that person and how they address you.

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Kinship Calculator

Tap relation buttons to build a chain and see how to address that relative.

Step by step Instant Private

Build the relation

Result

You call them

—

They call you

—

How it works

A chain of taps — all in your browser.

Tap relations

Father, mother, son, daughter, siblings, spouse.

Build the chain

Each tap extends the relation from you outward.

Read both ways

See how you call them and how they call you.

Why choose Ercc Kinship Calculator?

Common relations covered

Grandparents, great-grandparents, uncles/aunts, cousins, nieces/nephews, grandchildren and in-laws.

Instant results

Results update the moment you tap a relation.

No data leaves your browser

Pure client-side logic. Nothing is sent to any server.

Pro Tips

● Start from yourself — the chain is always relative to you.
● Use 兄/弟 and 姐/妹 to keep elder/younger order correct.
● Rarer chains show a descriptive path so the meaning stays clear.

FAQ

Frequently Asked Questions

How do I use it?

Tap the relation buttons to build a chain from yourself, and the app shows how you address that person and how they address you.

Does it handle every relation?

The most common 1–3 step relations are exact. Deeper ancestors and descendants (great-grandparents, great-great-grandparents, great-grandchildren…) are derived by generation rules. Very rare chains show a descriptive path so the meaning stays clear.

Does it need internet?

No. All logic runs locally in your browser.