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