title: How can one display a 1km by 1km wide map using Leaflet maps?P
body: <p>I would like to display a map that is square and corresponds to a geographical area of 1km by 1km using Leaflet maps js. 
  Let's say I have an Html div element of 100px by 100px, how can I achieve displaying the 1km x 1km? The only functions available in the Leaflet library are setZoomLevel and fitBounds. 
  Thanks for your assistance!</p>