Tag Archives: celsius

Weather Calculators and Converters


Available in the App Store

* Featured by Apple in the United States, Canada, and United Kingdom in both iPhone & iPad > Weather > What’s Hot

The Heat Index and Wind Chill Factor Calculators now display automatic weather calculation based on iPhone/iPad localization features with available internet access. Just press the Fetch button.

The Weather Calculators and Converters app will calculate weather conditions and do conversion between weather units which are input. Entries may be Fahrenheit, Celsius, Kelvin, MPH, KPH, Knots, inches of Mercury (in HG), millibars (hPA), millimeters of mercury (mm HG), meters, feet, etc. depending on the type of calculator.

• Send your calculations by mail
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs

The following twelve calculators and converters are included

- Heat Index
- Wind Chill
- Relative Humidity & Wetbulb
- Vapor Pressure
- Mixing Ratio
- Virtual Temperature
- Station Pressure
- Altimeter Setting
- Pressure Altitude
- Wind Speed Converter
- Temperature Converter
- Pressure Unit Converter

The results can also be emailed through the iphone’s email application using an automatically filled-in email template.

Simply punch in your raw numbers and press Calculate to get the answers to the formulas. It is as simple as that.

This is a Universal App which will run on the iPhone, iPod Touch, and iPad.

Available in the App Store

Temperature Converter (Celsius, Fahrenheit, Kelvin) & Relative Humidity Calculator

Available in the App Store

Universal Application for iPad, iPhone and iPod touch.

* Featured by Apple in ‘What’s Hot’ in the United States, United Kingdom, and Italia under iPad > Weather
* Featured by Apple in ‘What’s Hot’ in the Italia and United Kingdom under iPhone > Weather

Now features Fetching current weather conditions over the network.

Relative humidity may be defined as the ratio of the water vapor density (mass per unit volume) to the saturation water vapor density, and in the case of this iPhone App it is expressed as a percentage. The air temperature and dew point can be entered as Fahrenheit or Celsius.

The results can also be emailed through the iPhone’s email application. The application is completely compatible with the iPhone OS 3 and 4, as well as the iPod Touch and iPad.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions in the United States. Please contact Apple for further details.

Langelier Saturation Index Calculator


Available in the App Store

The Langelier Saturation Index Calculator uses the Langelier Saturation Index, a calculated number, to predict the calcium carbonate stability of water to determine equilibrium. This helps you determine the scaling potential of the water. A negative LSI indicates that the water is corrosive to steel.

The app also features a short interpretation of the the LSI value, and water temperature can be entered as Fahrenheit or Celsius.

The results can also be emailed through the iphone’s email application. The application is completely compatible with the iPhone OS 3 and later, as well as the iPod Touch.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions in the United States. Please contact Apple for further details.

Wind Chill Factor Calculator


Available in the App Store

* Featured by Apple in ‘What’s Hot’ in the United States under iPad > Weather

The Wind Chill Index Factor displays automatic weather calculation based on iPhone/iPad localization features with available internet access. Just press the Fetch button.

This is a tool for measuring the perceived when outside by measuring the impact of wind on the temperature of the air. The wind chill factor can not lower a temperature below the current air temperature, but instead it speeds up the decrease in temperature proportional the speed of the wind

Both the Old model for calculating the Wind Chill Factor, pre-2001 formula, and the New Wind Chill Index devised by the National Weather Service in 2001 are used. The values are calculated to the second decimal place for extra accuracy.

Inputs for Air Temperature can be given as Fahrenheit or Celsius. Acceptable inputs for wind velocity are Knots, Miles per Hour, and Kilometers per Hour.

This app features:

• Send your calculations or conversion by email
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs

Note: Windchill Temperature is only defined for temperatures at or below 50 degrees F and wind speeds above 3 mph.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions in the United States. Please contact Apple for further details.

Heat Index Calculator

Available in the App Store

• Featured by Apple App Store in Weather > What’s Hot for the iPad in 108 countries.

The Heat Index Calculator is the Universal App for measuring the perceived temperature.

Because the body normally cools itself by perspiration, when relative humidity is high, the evaporation rate is reduced, and heat is removed from the body at a lower rate causing it to retain more heat than it would in dry air.

This calculator takes into consideration not just the air temperature, but also the relative humidity, giving a good estimate of the perceived temperature when the the air temperature and relative humidity are entered. The heat category is a measurement taken from NOAA’s National Weather Service Heat Index Chart and is used to assist in determining how much caution should be exercised when outdoors for any period of time.

The results can also be emailed through the iPhone / iPod Touch / iPad’s email application using a prewritten template.

The answer is computed for both Fahrenheit and Celsius for convenience.

The calculator is the most effective when the temperature is at least 80 °F / 26 °C and the relative humidity is at least 40%.

This app features:
• Send your calculations or conversion by email
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs
• Location-based Weather

Press the FETCH button to get your location calculated HEAT INDEX for the iPhone, iPad, and iPod Touch. Then try calculating your “What if’s” by changing the values.

Available in the App Store

This app is available for a discount to Apple-approved Education institutions in the United States. Please contact Apple for further details.