If you earn £20 per hour, your annual income can be calculated by considering a typical full-time work schedule. Assuming you work 40 hours each week and take no unpaid time off, you would work a total of 2,080 hours in a year, which is derived from 40 hours multiplied by 52 weeks. Therefore, when you multiply your hourly wage of £20 by the total number of hours worked annually, you arrive at an annual salary of £41,600. This figure represents your gross income before any deductions such as taxes or national insurance contributions. It's important to note that actual take-home pay may vary based on individual circumstances, including tax brackets and any additional benefits or deductions applicable to your situation.