Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Urban Sprawl Index Calculator

Measure urban sprawl by comparing the percentage growth of built-up urban area to population growth. Used by urban planners and geographers to assess land-use efficiency.

Urban Area Growth (%)

Population Growth (%)

Fill in the required fields to see your result.

Geography

Heat Index Climate Calculator

Calculate the apparent 'feels like' temperature by combining air temperature, humidity, and wind speed. Useful for athletes, event organisers, and public health officials assessing outdoor heat risk.

Air Temperature (°C)

Relative Humidity (%)

Temperature Unit

Wind Speed (km/h)

Fill in the required fields to see your result.

Key differences

	Urban Sprawl Index Calculator	Heat Index Climate Calculator
Category	Geography	Geography
Inputs required	2	4
Result	Urban Sprawl Index	Apparent Temperature (°)
What it does	Measure urban sprawl by comparing the percentage growth of built-up urban area to population growth. Used by urban planners and geographers to assess land-use efficiency.	Calculate the apparent 'feels like' temperature by combining air temperature, humidity, and wind speed. Useful for athletes, event organisers, and public health officials assessing outdoor heat risk.