NoLimits Coaster Calculator lets you calculate some useful numbers that aid in designing well built rides
The first is the Station Length formula. You just enter the number of cars in each train, and how many rows of seats are on each car. The formula tells you how long your station needs to be in order to have the correct number of queue gates. Note that they may not line up with the train. The number of gates will be correct, however.
The other formula is the Lim Length calculator. You enter the speed you want the coaster to have at the end of the launch and the force it imposes on the train (just as you did in the NoLimits editor) and The Calculator tells you how long the Lim segment needs to be in order to reach that speed. As a bonus, it also tells you how long (in seconds) it takes to reach that speed with that force. Note that you can almost always get away with a shorter Lim, because the Equation does not account for the length of the train. The actual minimum lim length is closer to the value it returns, minus the length of the train (which can vary greatly).
License - Absolutely Free. Distribute however you like. Source code available upon request. It's really not a big deal. Just a calculator (la de da!) with some physics and bezier curve equations - certainly nothing proprietary by any means.
