How Much Water Should You Drink With a Fever?

When you’re running a fever, your body loses fluids faster through sweating and higher metabolic activity. That’s why hydration is critical. But exactly how much water should you drink with a fever?

Why Fever Increases Fluid Needs

• Fever raises body temperature, causing more sweating.
• Your metabolism speeds up, using more water for cellular function.
• Fever may suppress appetite and thirst, leading to hidden dehydration.

Daily Fluid Goals With a Fever

Most adults should drink 3–4 liters of fluids daily when feverish. Children need adjusted amounts based on weight. Use our Daily Water Calculator for a personalized baseline, then add 500–1000 ml when running a fever.

Best Hydration Options

• 💧 Water – Always the foundation.
• ⚡ Electrolyte drinks – Replace minerals lost from sweating.
• 🥣 Clear broths – Provide fluids and nutrients.
• 🍵 Herbal teas – Gentle hydration and soothing warmth.

Affiliate Recommendations

• ⚡ Liquid I.V. Hydration Multiplier – Replenish fluids and electrolytes fast.
• 🥤 Nuun Electrolyte Tablets – Easy-to-use hydration boost.
• 🍵 VAHDAM Herbal Tea Sampler – Comforting hydration during illness.

FAQs

Can dehydration make a fever worse?

Yes. Dehydration can raise body temperature and slow recovery.

Should I drink cold or warm water with a fever?

Both hydrate effectively. Cold water may help cool you, while warm fluids can soothe discomfort.

How do I know if I’m hydrated enough?

Check urine color (light yellow is ideal) and monitor energy levels.

Last updated: August 2025