Hot Car Calculator: Estimate Time to Heatstroke Risk

Calculate Hot Car Interior Temperature & Heatstroke Risk

Quickly determine how fast a car's interior heats up to dangerous levels. Our Hot Car Calculator helps you understand the severe risk of leaving children or pets unattended, even for a short time, to prevent heatstroke. Use this tool to visualize vehicle heat danger.

Formula:

The estimated final interior temperature of a car (Tfinal) is calculated by adding the initial ambient outdoor temperature (Tambient) to an estimated temperature increase (ΔT) based on the elapsed time:

Tfinal = Tambient + ΔT

Where:

  • Tfinal: The estimated interior temperature of the car.
  • Tambient: The outdoor temperature when the car was parked.
  • ΔT: The estimated temperature increase inside the car over time, influenced by solar radiation and other factors. This calculator uses an average, simplified model for ΔT, which is highly dependent on environmental conditions like sun exposure, car color, and window type, and should be considered an estimate.

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