Based on David Airey's design pricing formula
This calculator is merely a recommendation of what you should charge. You should decide for yourself what you should charge. I'm not responsible for you over- or under-bidding a project.
Based on the criteria, you may want to charge:
On a scale of 1 to 10, how good are you?
How complex is this project?
How quickly would you need to finish?
Is this client high-maintenance?
On a scale of 1 to 5, how busy are you?
How is the current economy?
Where in the world are you?