Loans, Payments & Billing
Handle everyday money tasks — loan and mortgage payments, tips, currency conversion and professional invoices. Whether you are modeling a mortgage, splitting a restaurant bill, converting travel money at live rates, or sending a client a professional invoice, these four tools handle the number-crunching so you can focus on the decision. Use the Loan & Mortgage Calculator to compare monthly payments and total interest across different terms and rates before committing. The Currency Converter fetches live exchange rates for travel or cross-border shopping. At the table, the Tip Calculator splits the bill and calculates tips by percentage or custom amount. When you need to bill a client, the Invoice Generator produces a clean, print-ready document with no template hunting.
4 free tools — no downloads, no sign-up.
All Loans, Payments & Billing tools
Currency Converter
Live exchange rates. Frankfurter API, 7-day chart.
Invoice Generator
Create invoices, print-ready template. Export via print.
Loan & Mortgage Calculator
Loan calculator. Monthly payment, amortization, early payoff.
Tip Calculator
Calculate tips and split bills. Works worldwide.
Common workflows
A homebuyer uses the Loan & Mortgage Calculator to weigh a 15-year against a 30-year mortgage, seeing how total interest shifts with each extra percentage point on the rate.
A freelancer fills in the Invoice Generator with line items and client details, then prints a professional invoice directly — no account, no template downloads.
A traveler checks the Currency Converter to see how much EUR their USD buys, then uses the Tip Calculator at dinner to split a €120 bill three ways with a 15% tip.
Frequently asked questions
Does the loan calculator show amortization?
Yes, it breaks down payments into principal and interest over the term.
Where do exchange rates come from?
The Currency Converter fetches current reference rates for the conversion.
Can I download an invoice?
Yes, the Invoice Generator produces a clean, printable document.