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Financial Calculations for Freelancers: TVM and Amortization

Freelancing means doing your own money math, and most of it happens on a phone between meetings. Wonder Cal's finance mode was built for exactly that reality.

The TVM calculator is the workhorse. It solves for present value, future value, interest rate, periods, or payment from any four inputs. For a freelancer, that covers saving for tax season, planning equipment purchases, and projecting income growth. Enter the numbers, solve, and move on.

Amortization is the tool you want before financing anything. Run the numbers on a new laptop, a car, or a studio lease before you commit. The app generates a full schedule showing every payment, the interest portion, and the remaining balance, so the total cost of borrowing is never a mystery.

What makes it practical is the context. Wonder Cal is a calculator app with one history, so your invoice math, your tax estimates, and your loan scenarios live side by side. Nothing gets lost between apps.

Freelancers also appreciate the unit converter for client work across measurement systems and the general keypad for quick estimates during calls.

Your rate card tells clients what you charge. Wonder Cal tells you what your money is doing between invoices.

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