TypeError: can't convert BigInt to number

This is a reference entry from MDN Web Docs. A full explanation with fixes has not been written yet.

The error messages

TypeError: Cannot convert a BigInt value to a number (V8-based)

As listed by MDN Web Docs

TypeError: Cannot mix BigInt and other types, use explicit conversions (V8-based)

As listed by MDN Web Docs

TypeError: BigInts have no unsigned right shift, use >> instead (V8-based)

As listed by MDN Web Docs

TypeError: can't convert BigInt to number (Firefox)

As listed by MDN Web Docs

TypeError: Conversion from 'BigInt' to 'number' is not allowed. (Safari)

As listed by MDN Web Docs

TypeError: Invalid mix of BigInt and other type in addition/multiplication/…. (Safari)

As listed by MDN Web Docs

TypeError: BigInt does not support >>> operator (Safari)

As listed by MDN Web Docs

Different error? Paste it

or press Cmd/Ctrl + Enter. The text is only sent to this site to match it.

Source: MDN Web Docs. Data fetched 2026-09-25T01:48:37.273Z.