Number Validators in Zod

From the Zod cheat sheet · Number Validation · verified Jul 2026

Range, integer, and sign validators for numbers

typescript

z.number().min(0);
z.number().max(100);
z.number().int();
z.number().positive();
z.number().negative();
z.number().multipleOf(5);

💡 z.number() rejects NaN by default — use z.nan() if you need to allow it

⚡ Use .int() before other validators for cleaner integer-only schemas

📌 .multipleOf() works for floats like 0.01 — perfect for currency validation

🟢 .safe() ensures the number fits in JavaScript safe integer range

numbervalidationinteger

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