How to Convert a JavaScript BigInt Value to a Number?

JavaScript BigInt to Number Conversion

You can convert a bigint to a number by simply using the Number wrapper object like so:

// ES10+
const MAX_SAFE_INTEGER = 9007199254740991n;

console.log(Number(MAX_SAFE_INTEGER)); // 9007199254740991

Please be aware that the precision of a BigInt value may be lost when it is coerced to a Number value (and back).


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