Advertise click here

Buy 24 calculator
Personal Voice Calculator
using your smartphone for only $8.00
with combine formula and calculator

I Forgot The Formula - No Worry

subscribe to INVBAT.COM
Formula and Calculator as a Service
by Apolinario (Sam) Ortega

Buy Interactive Formula and Voice Calculator Using Your Smartphone

Available Advertising Spot



× =


÷ =


+ =



Modulo division (Remainder is the answer)

% =

Click related calculators

Enter your subscriber number for example:S1
or webpage number 54 or keyword for example: Quadratic

If you are a subscriber we can create your frequently use keyword, like for example: complex drawing or conversion to make it easy to find.

Then press "Enter" on your keyboard
or click the search button.