Go to the Taxi Fare Finder website (see References 1).
Input "Denver" as your city under "Step 1: Select Your City."
Enter the starting and end points under "Step 2: Enter where you are, Enter destination."
Click "Calculate Fare!" under the "Step 3: Click and wait..."
The website will draw up an estimate for your cab ride on the proceeding page.
Go to the Taxigrab website (see References 2).
Fill out the Taxi Fare Calculator box by selecting "Denver" as the city, the number of passengers in the cab and the approximate miles for the trip.
Click "Calculate taxi fare" and an approximate fare will appear at the top of the browser window.