Net Present Value (NPV) Calculator is a calculator of calculating Net present value. It could calculate NPV base on your input of outflow and inflows.

Internal Rate of Return (IRR) Calculator is a calculator of calculating an investment’s rate of return. It could calculate IRR base on your input of outflow and inflows.

The compound interest calculator can calculate the compound interest according to the calculation frequency of day, week, month or year by setting the initial capital investment, annual interest rate and period. Compound interest refers to the interest calculation method in which the interest of a certain interest period is calculated by adding the total amount of interest accumulated in the previous period to the principal, which is commonly referred to as "rolling interest".

The number to English Word online tool can convert the entered values / numbers into English, and supports decimal points.