Convert any pay — per hour, day, week, month or year — into all the others so you can compare jobs and freelance rates.
Multiply by 12 for the year, then divide by the hours you work in a year: hours per day × days per week × weeks per year.
If you are paid for them, keep 52 weeks. If not, lower the weeks per year.
Yes, it uses the amount you enter as it is.
No. Everything is worked out in your browser and nothing you type is sent to a server.