Baby Bath Temperature Calculator
Check if your baby's bath water is safe.
The ideal range is 37-38°C (98.6-100.4°F) for infants under 12 months.
Why bath temperature matters for babies
A baby’s skin is far more sensitive than adult skin — it is thinner, more permeable, and loses heat much faster. What feels comfortable to your hand or elbow may still be dangerously hot for your infant. Scalds from bath water are one of the most common preventable injuries in babies under two years old.
Safe temperature range
The recommended bath water temperature for babies under 12 months is 37–38°C (98.6–100.4°F). This is close to normal human body temperature, which feels warm but never hot. For toddlers aged 1–3 years the range is slightly wider — 36–38°C (96.8–100.4°F) — but still much cooler than the typical adult preference of 40°C+.
How to measure correctly
Always stir the water thoroughly before measuring or testing — hot and cold pockets form near taps and jets. A dedicated bath thermometer is the most reliable method. The traditional “elbow test” (dipping your elbow in) is a useful backup: water that feels neutral on your elbow is usually in the safe range.
Too hot: Water above 38°C can cause redness, discomfort, and — if significantly hotter — scalds that require medical attention. Never leave a baby unattended even for a moment, and always run cold water first, then add hot water.
Too cold: Water below 36°C can cause rapid chilling in newborns, who cannot regulate their body temperature effectively. A cold bath can lead to hypothermia in very young infants.
General bath safety tips
- Fill the bath before putting baby in — never run hot water with the baby present.
- Keep one hand on the baby at all times.
- Aim for a 2–5 minute bath for newborns; 5–10 minutes for older babies.
- Dry the baby immediately and completely after the bath to prevent chilling.