# In app calculator **URL:** \ **Category:** Ask for Help\ **Created:** [February 20, 2022, 11:28am UTC](https://community.glideapps.com/t/in-app-calculator/38733 "2022-02-20T11:28:15Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Cloud\_X](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/cloud_x/32/11700_2.png) [@Cloud\_X](https://community.glideapps.com/u/Cloud_X)\ **Post date:** [February 20, 2022, 11:28am UTC](https://community.glideapps.com/t/in-app-calculator/38733/1 "2022-02-20T11:28:15Z")
I want to create a simple calculator that calculate resistant ,wattage ,current and voltage (ohm law calculator) exactly like this calculator [Ohm's Law Calculator | Free Vape Ohm Calculator - by Wotofo](https://www.wotofo.com/pages/ohms-law-calculator) ---
**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\ **Post date:** [February 20, 2022, 11:41am UTC](https://community.glideapps.com/t/in-app-calculator/38733/2 "2022-02-20T11:41:19Z")
That should be fairly straight forward. Just set it up to that the input components are writing to user specific columns, then use a math column to calculate the result. If you want to emulate the “lock value” feature, you can do that with a choice component that writes to another user specific column, and then use visibility conditions to either display an input box or a text value for the value that is locked. ---
**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/system/32/53398_2.png) [@system](https://community.glideapps.com/u/system)\ **Post date:** [February 21, 2022, 11:58am UTC](https://community.glideapps.com/t/in-app-calculator/38733/4 "2022-02-21T11:58:53Z")
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