Searching for your formula and calculator is now easy

Just enter the key word in the search box or touch the search box then select the microphone icon and say the keyword in your smartphone. Next touch the magnifying glass icon for search. If your formula and calculator is not in our database please be patient while we are growing our database or send us an e-mail at

Free subscription for 30 days. INVBAT.COM will help you to create your personal calculator website using WordPress and Amazon Web Services cloud technology. For $2 monthly subscription you will have technical support to create and manage your personal calculator website. Then we can create your keyword for your calculator and use your smartphone to search for it. E-mail us at of your calculator request.

Click here to see example of personal calculator layout . The layout is similar across smartphone, tablet, laptop or desktop computer. Try it.