More than twenty convenient and powerful calculation tools for everyday uses. Most of these calculators perform reverse calculation, which is not found in many other calculator providers.

1. Bill, tip and tax amount calculation with a multiple-person split feature. Tip percent can be applied to the bill total before or after sales tax.
2. Retail margin, margin percent, markup, markup percent and break-event point calculation.
3. Calculate daily, weekly, and monthly appliance electricity as well as annual usage cost.
4. Calculate hourly, daily, weekly, monthly, and annual salary with inputs such as days worked per week and hours worked per day.
5. Credit card monthly payment for payoff, duration and total interest calculation.
6. Mortgage down payment, loan amount and monthly payment calculation.
7. Vehicle trip fuel expense, mileage and fuel economy (MPG/KPL) calculation.
8. Lump sum money present and future values calculation.
9. Annuity, time value of money present and future values calculation with monthly deposit.
10. Compound interest and maturity value calculation with monthly deposit option.
11. Retail on-sale discount amount, percent and sales tax calculation. Considers more than one discount.
12. Temperature units conversion (Celsius, Fahrenheit and Kelvin).
13. Air pressure units conversion.
14. Weight, length, area and speed unit conversion.
15. Distance, time, speed and pace unit conversion.
16. 24 point math game solver and random card generator with solve duration timer.
17. Income tax calculator for multiple tax rate brackets with deductions.
18. Mathematical expression evaluator which can handle and display large numbers.
19. Calculate triangle sides and angles. Angles can be in radians, decimal degrees, or degree, minute and second format.