# Calculations from lookup column

**URL:** <https://community.glideapps.com/t/calculations-from-lookup-column/69650>\
**Category:** Ask for Help\
**Created:** [January 17, 2024, 2:50pm UTC](https://community.glideapps.com/t/calculations-from-lookup-column/69650 "2024-01-17T14:50:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pablo42](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/pablo42/32/54238_2.png) [@pablo42](https://community.glideapps.com/u/pablo42)\
**Post date:** [January 17, 2024, 2:50pm UTC](https://community.glideapps.com/t/calculations-from-lookup-column/69650/1 "2024-01-17T14:50:11Z")

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I am creating an civil engineering app to calculate points along a vertical curve, whenin there are two tables. Table 1 has five fields the user enters some values related to the VPI of curve. The next 6 fields are calcuations of constants based on that input to fully define the curve.  
My second table will be a list of points or stations along the curve in which i need to calculate the elevation. Tables have a relation setup (table 1 is curve definition and table 2 are the points along the curve)  
I cannot seem to use the values in table 1 to perform calculations in table 2. Even when I bring them in a lookup field into table 2?  
Appreciate your help,

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**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:** [January 17, 2024, 3:32pm UTC](https://community.glideapps.com/t/calculations-from-lookup-column/69650/2 "2024-01-17T15:32:49Z")

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Any chance you can share a screen shot of both tables?

If I was to take a stab, my guess would be that you might be using a multiple relation instead of a single relation. But I could confirm that or otherwise from a screen shot.