You can calculate your hatims very easily using this application.
Ottoman language option is available.
NOTE
The numbers of the following hatim types in this application are as follows.
Ihlas/Istighfar/Salavat => 1000
Tawhid => 70000
Vallahu Ghalibun => 1463
Ayetel Kursi => 313
If you find these numbers wrong, you can calculate the number of hatim that you think is correct without choosing the hatim type.