Freela calculator is a free Chrome add-on developed by Douglas 'Amarelo' Lopes. It is a useful tool designed specifically for freelancers to calculate their work hours. With this add-on, freelancers can easily keep track of the hours they have worked on different projects.

The interface of Freela calculator is simple and user-friendly. It allows freelancers to input their working hours and rates for each project, and then calculates the total earnings based on the entered data. This makes it easy for freelancers to keep a record of their work and ensure accurate billing.

One of the key features of Freela calculator is its flexibility. It allows freelancers to customize the currency, hourly rate, and tax rate according to their specific needs. This makes it suitable for freelancers working in different countries and industries.

Overall, Freela calculator is a handy tool for freelancers who want to efficiently track their work hours and ensure accurate billing. Its simple interface and customizable features make it a valuable addition to any freelancer's toolkit.