I need to some ideas in doing Capacity planning for web and DB, If some one can help?

[Am D]

Details

• I do have 10K user licenses
• JIRA 7.0.10 ( upgrading soon to 7.3)
  
• Current Number of Users: 200 ( assuming 5K in next 5 years)
• Current Total Issues: 20K 
• Projects: 14
• Workflows: 41

What I need to know for DB capacity 

1. OS file space
2. SQL server DB file Space
3. Page file (1.5 times the RAM)
4. Temp DB ( in SSD)
5. DB log file
6. Application and misc files
7. DB Backup
8. CPU
9. Memory

What I need to know for Web Capacity 

1. OS file space
2. SQL server DB file Space
3. Application and misc files
4. DB Backup
5. CPU
6. Memory

[Nic Brough -Adaptavist-]

Have a look at https://confluence.atlassian.com/adminjiraserver071/jira-applications-installation-requirements-802592164.html

[Am D]

Thanks Nic,I did look at it but couldn't get much of the idea. I was kind of looking of formulas to calculate. 

[Nic Brough -Adaptavist-]

There aren't any formulae - what you need is a function of user numbers, configuration complexity, and patterns of usage.  You could technically come up with a formula for that, but it'll be horrendously complex and not actually tell you an amazing amount.

Re-read the doc and look at it alongside your italicised points (although I'd forget the workflows, the number of them is not that important compared with the rest)