Heatstroke Calculator
How quickly does your parked car become deadly for your dog? Calculate cabin temperature and heatstroke risk based on outside temp, time and dog profile.
Frequently Asked Questions
How quickly does a parked car become dangerous for dogs in hot weather?
Even at 20 °C outside, the cabin can climb above 46 °C within 60 minutes (NHTSA). At 30 °C outside, expect around 50 °C inside after 30 minutes (ADAC). About 80 % of the temperature rise happens in the first 30 minutes — even on cloudy days (Stanford 2005).
Which dogs are most at risk?
Brachycephalic breeds like Pugs, French Bulldogs and Boxers have shortened airways and dissipate heat far less effectively. Seniors over 7 years, puppies, overweight dogs and animals with heart or respiratory conditions also reach critical body temperatures faster.
Does cracking a window really help?
Only slightly. A cracked window slows the temperature rise by about 25 %, but doesn't prevent it. The cabin can still reach life-threatening levels. The only safe rule: don't leave your dog in the car.
What should I do if I suspect heatstroke?
Move the dog into shade or an air-conditioned car immediately. Cool with lukewarm (NOT ice-cold!) water, especially paws, belly and inner thighs. Offer water but don't force it. Call your vet or emergency clinic right away — heatstroke is a life-threatening emergency.
