100 milliliters (ml) is approximately 3.38 fluid ounces (oz).

Conversion details:

• 1 milliliter ≈ 0.033814 fluid ounces
• So, 100 ml × 0.033814 = 3.3814 oz

If you need the conversion for a specific type of ounce (like US fluid ounces or UK fluid ounces), let me know!