--- title: "Heat Index Calculator | Feels Like Weather Calculator | XTRAW Tools" description: "Calculate the apparent \"feels like\" temperature from air temperature and humidity. Use this free browser-based calculator from XTRAW Tools for heat index, wind chill, apparent temperature, and weather safety estimates." url: "https://xtraw.com/tools/everyday-utilities/home-household-tools/heat-index-calculator" date: "2026-05-22T01:20:47+00:00" language: "en-GB" --- [Wind Chill Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/wind-chill-calculator)[Air Changes Per Hour Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/air-changes-per-hour-calculator) [![Heat Index Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/xtraw-heat-index-calculator-360x360.jpg)](https://xtraw.com/images/virtuemart/product/xtraw-heat-index-calculator-360x360.jpg "Heat Index Calculator from XTRAW Tools") new [Back to: Home & Household Tools](https://xtraw.com/tools/everyday-utilities/home-household-tools "Home & Household Tools") # Heat Index Calculator Calculate the apparent "feels like" temperature from air temperature and humidity. Use this free browser-based heat index calculator from XTRAW Tools. **Heat Index Calculator** helps you calculate the apparent "feels like" temperature from air temperature and humidity. Use this free browser-based calculator from XTRAW Tools to compare inputs, estimate results, and plan your next step. ## How to Use the Heat Index Calculator 1. Enter the required calculator inputs shown in the form. 2. Review the environmental, water, solar, compost, recycling, fuel, temperature, humidity, or weather assumptions. 3. Run the calculator, then adjust one input at a time to compare scenarios or check your estimate. ## What This Calculator Helps With Calculate the apparent "feels like" temperature from air temperature and humidity. It is designed for students, weather watchers, outdoor users, homeowners, pilots in training, educators, event planners, and general weather reference users who want a fast browser-based estimate before relying on official calculators, utility bills, weather stations, climate data, professional reports, supplier guidance, or regulatory sources. - Air Temperature: 95°F - Relative Humidity: 60% ## Common Uses People use this calculator when they need a quick way to estimate apparent temperature, heat index, wind chill, and weather safety conditions. - **Health Estimate:** Review apparent temperature, humidity, and weather-safety reference values for general education only, not for medical or emergency decisions. - **Measurement:** Use environmental, water, weather, energy, emissions, garden, recycling, or fuel inputs to calculate a practical estimate. - **Project Planning:** Plan conservation projects, garden watering, rainwater systems, solar scenarios, carbon offsets, recycling goals, or weather reference checks. ## Formula or Method Rothfusz regression: HI = −42.379 + 2.049T + 10.143R − 0.225TR − ... (8-term polynomial) ## Example **Example inputs:** Air Temperature: 95°F; Relative Humidity: 60% **Example result:** Using the default inputs, the heat index is about 113.1°F. ## Related Tools - [Dew Point Calculator](https://xtraw.com/tools/dew-point-calculator) - [Relative Humidity Calculator](https://xtraw.com/tools/relative-humidity-calculator) - [Wind Chill Calculator](https://xtraw.com/tools/wind-chill-calculator) - [Temperature Conversion Calculator](https://xtraw.com/tools/temperature-conversion-calculator) - [Cloud Base Calculator](https://xtraw.com/tools/cloud-base-calculator) ## Heat Index Calculator FAQ ### Is the Heat Index Calculator free? Yes. This calculator is free to use on XTRAW Tools. ### Do I need to create an account? No. XTRAW tools are designed for browser-based use without requiring an account. ### Are the results exact? Results may be estimates depending on the inputs, formula, rounding, assumptions, local conditions, factor sources, measurement method, and purpose of the calculator. Always verify important results before relying on them. **Disclaimer:** This calculator is provided for general informational, educational, and convenience purposes only. It is not meteorological, aviation, medical, occupational-safety, emergency, legal, financial, or professional advice. Weather formulas, local observations, microclimates, station data, and real-world conditions can vary. Always verify important weather, aviation, heat-safety, cold-safety, and emergency decisions with qualified professionals, official forecasts, local authorities, and authoritative sources before relying on them. **Related Products** ![Tooltip]() [![Dew Point Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-dew-point-calculator-360x360_230x230.jpg) Dew Point Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/dew-point-calculator "Dew Point Calculator") Calculate dew point temperature from air temperature and relative humidity. Use this free browser-based dew point calculator from XTRAW Tools. Custom prototype for related products [![Relative Humidity Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-relative-humidity-calculator-360x360_230x230.jpg) Relative Humidity Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/relative-humidity-calculator "Relative Humidity Calculator") Calculate relative humidity, actual vapor pressure, or dew point. Use this free browser-based relative humidity calculator from XTRAW Tools. Custom prototype for related products [![Wind Chill Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-wind-chill-calculator-360x360_230x230.jpg) Wind Chill Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/wind-chill-calculator "Wind Chill Calculator") Calculate wind chill temperature from air temperature and wind speed. Use this free browser-based wind chill calculator from XTRAW Tools. Custom prototype for related products [![Temperature Conversion Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-temperature-conversion-calculator-360x360_230x230.jpg) Temperature Conversion Calculator](https://xtraw.com/tools/converters/temperature-converters/temperature-conversion-calculator "Temperature Conversion Calculator") Convert temperature values between Celsius, Fahrenheit, Kelvin, and related temperature scales. Use this free browser-based temperature conversion calculator from XTRAW Tools. Custom prototype for related products [![Cloud Base Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-cloud-base-calculator-360x360_230x230.jpg) Cloud Base Calculator](https://xtraw.com/tools/everyday-utilities/home-household-tools/cloud-base-calculator "Cloud Base Calculator") Estimate the height of cumulus cloud bases from temperature and dew point. Use this free browser-based cloud base calculator from XTRAW Tools. Custom prototype for related products **Related Categories** ![Tooltip]()[![Calculators category image](https://xtraw.com/images/virtuemart/category/2_calculators.jpg) Calculators](https://xtraw.com/tools/calculators "Calculators") Custom prototype for related categories [![Science Calculators category image](https://xtraw.com/images/virtuemart/category/26_science_calculators.jpg) Science Calculators](https://xtraw.com/tools/calculators/science-calculators "Science Calculators") Custom prototype for related categories [![Weather Calculators category image](https://xtraw.com/images/virtuemart/category/321_weather-calculators.jpg) Weather Calculators](https://xtraw.com/tools/calculators/science-calculators/weather-calculators "Weather Calculators") Custom prototype for related categories [![Apparent Temperature Calculators category image](https://xtraw.com/images/virtuemart/category/322_apparent-temperature-calculators.jpg) Apparent Temperature Calculators](https://xtraw.com/tools/calculators/science-calculators/weather-calculators/apparent-temperature-calculators "Apparent Temperature Calculators") Custom prototype for related categories [![Home & Household Tools category image](https://xtraw.com/images/virtuemart/category/165_home-household-tools.jpg) Home & Household Tools](https://xtraw.com/tools/everyday-utilities/home-household-tools "Home & Household Tools") Custom prototype for related categories ## Schema ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://xtraw.com#organization", "name": "XTRAW Tools", "alternateName": "XTRAW", "url": "https://xtraw.com", "logo": { "@type": "ImageObject", "@id": "https://xtraw.com#logo", "url": "https://xtraw.com/images/xtraw-logo.png#joomlaImage://local-images/xtraw-logo.png?width=1100&height=400", "contentUrl": "https://xtraw.com/images/xtraw-logo.png#joomlaImage://local-images/xtraw-logo.png?width=1100&height=400", "caption": "XTRAW Tools" }, "image": { "@id": "https://xtraw.com#logo" }, "email": "jason@vuumarketing.com", "description": "XTRAW Tools provides free browser-based calculators, converters, generators, developer tools, business tools, file tools, writing tools, and everyday utilities.", "knowsAbout": [ "calculators", "online calculators", "unit converters", "file tools", "developer tools", "business calculators", "finance calculators", "math calculators", "education calculators", "health calculators", "construction calculators", "real estate calculators", "writing tools", "random generators", "everyday utilities" ], "contactPoint": { "@type": "ContactPoint", "contactType": "customer support", "email": "jason@vuumarketing.com", "url": "https://xtraw.com/contact" } }, { "@type": "WebSite", "@id": "https://xtraw.com#website", "name": "XTRAW Tools", "alternateName": "XTRAW Tools", "url": "https://xtraw.com", "publisher": { "@id": "https://xtraw.com#organization" }, "inLanguage": "en-gb", "about": { "@id": "https://xtraw.com#organization" } }, { "@type": "ImageObject", "@id": "https://xtraw.com/tools/everyday-utilities/home-household-tools/heat-index-calculator#primaryimage", "url": "https://xtraw.com/https://xtraw.com/images/virtuemart/product/xtraw-heat-index-calculator-360x360.jpg", "contentUrl": "https://xtraw.com/https://xtraw.com/images/virtuemart/product/xtraw-heat-index-calculator-360x360.jpg", "caption": "Heat Index Calculator", "representativeOfPage": true }, { "@type": "WebPage", "@id": "https://xtraw.com/tools/everyday-utilities/home-household-tools/heat-index-calculator#webpage", "url": "https://xtraw.com/tools/everyday-utilities/home-household-tools/heat-index-calculator", "name": "Heat Index Calculator | Feels Like Weather Calculator | XTRAW Tools", "headline": "Heat Index Calculator", "description": "Calculate the apparent "feels like" temperature from air temperature and humidity. 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