THI (Temperature-Humidity Index) & Heat Index Calculator | MyMortuaryCooler
Managing ambient temperature and relative humidity is essential for safe, compliant, and efficient operations. Use the tool below to estimate heat stress conditions and learn how to keep your work areas—and your mortuary coolers—within target ranges.
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Use this external calculator to estimate the Heat Index from temperature and relative humidity:
👉 Open the Heat Index Calculator at Calculator.net
What Is THI (Temperature-Humidity Index)?
THI (often used interchangeably with Heat Index) combines temperature and humidity to show how hot conditions feel and how much heat stress they create.
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High humidity reduces evaporative cooling, increasing perceived heat.
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Poor ventilation or radiant heat sources raise risk.
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Monitoring THI helps protect staff and maintain equipment performance.
How to Use the Calculator
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Measure ambient temperature (°F or °C).
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Measure relative humidity (%).
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Enter both in this tool: Calculator.net Heat Index Calculator
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Review your Heat Index result.
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Adjust environment controls as needed.
Heat Index Risk Categories
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Caution: Heat stress possible with prolonged exposure.
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Extreme Caution: Increased risk of cramps or exhaustion.
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Danger: Heat cramps/exhaustion likely; heat stroke possible.
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Extreme Danger: Heat stroke highly likely without mitigation.
Always apply local workplace safety policies and standards.
Controls & Mitigations for Funeral & Medical Facilities
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Improve ventilation and air exchange.
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Reduce heat gain and moisture near cooler doors.
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Add dehumidification and maintain insulation.
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Rotate staff and schedule heavy work for cooler times.
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Track temperature and RH with data loggers.
Target Ranges Near Mortuary Coolers
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Prep/work areas: 68–75°F (20–24°C) and 40–60% RH.
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Minimize door open time to reduce compressor load.
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Maintain door gaskets and insulation for efficiency.
(Always follow local codes, OSHA guidance, and manufacturer specifications.)
Why This Matters to Cooler Performance
Excess ambient heat and moisture increase compressor cycles, condensation, and energy use. Maintaining proper THI protects uptime, extends lifespan, and reduces costs.
Need Help Right-Sizing or Troubleshooting?
Our experts can evaluate your site’s temperature, humidity, and traffic patterns to recommend the right cooling system or upgrades.
Request a Quote | Talk to a Specialist
FAQ
Is THI the same as Heat Index?
Yes, both measure perceived heat from temperature and humidity.
Do I need both temperature and humidity readings?
Yes—humidity has a major impact on perceived heat and equipment efficiency.
Can I use Celsius instead of Fahrenheit?
Yes. The calculator supports both; just use consistent units.
What if my Heat Index is high?
Improve airflow and dehumidification, and reassess conditions.
