You know that you can save the Earth (a little bit) by switching out your car for a bike when you can but do you know how much you can save on emissions? How about how many trees you would have to plant to cover the pollution from those emissions, if you choose to drive instead? The Car vs. Bike Calculator will give you all the answers.

This is another one of the Omni calculator options. We’ve featured some of their calculators in the past because they’re super useful. This one is no different. You just input how far you travel one way for work and it spits out some figures on how much you saved the environment.

This is just an estimate of the time. Everyone’s commute is different. Rush hour in Bangkok means something completely different than Rush hour in Nebraska, for example. So the numbers almost certainly aren’t perfect. This calculator will give an idea of what a difference a small change makes. Check it out for free on the website.