Safe Caffeine Calculator

    Calculate maximum safe caffeine intake

    kg
    mg

    公式

    Max = min(400mg, Weight × 6mg/kg)

    FDA recommends max 400mg/day for healthy adults.

    示例

    70kg adult

    Max ~400mg ≈ 4 coffees.

    常见问题

    关于 Safe Caffeine

    Calculate your maximum safe daily caffeine intake.