I suggest you to use MAUD. It's a very good software http://www.ing.unitn.it/~luttero/maud/Installers/maudInstallers.html.In addition You can find many tutorials from the author as this https://www.youtube.com/watch?v=J5aP_j-3AXI

Good luck

Grazia

There is plenty of software available for free in online. Check out this link

http://www.ccp14.ac.uk/solution/indexing/

Here, u can find a software called "Unit Cell" which is useful for calculating lattice parameters and unit cell volume. U need to have accurate 2 theta positions and its corresponding Miller indices of ur material. Easy to use! 

There are many like Satish just told you. Eg. Cellcalc, Xpowder, etc.

first calculate it using standard formulas and then refine it using some software like powder X and also you may Le Bail fit of XRD pattern using refinement software like FullProf or Rietica. I hope it will help you.

Best Regards 

A. Ahad

Thanks a lot for valuable suggestions @ Abdul Ahad , A S Pillai, Satish Bolloju 

I suggest you to use MAUD. It's a very good software http://www.ing.unitn.it/~luttero/maud/Installers/maudInstallers.html.In addition You can find many tutorials from the author as this https://www.youtube.com/watch?v=J5aP_j-3AXI

Good luck

Grazia

Try crysfire or expo

http://onlinelibrary.wiley.com/doi/10.1002/crat.201500024/abstract

http://www.ccp14.ac.uk/tutorial/crys/

good luck

Hi!

BHU having very strong group in Crystallography and X-ray Physics. They most having above software , plz search in your university.

ok