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Project scheduling made really easy

Get the practical Calendar Week Calculator app!

Have the project start and end dates and want to quickly calculate the total time to get started on detail planning of the project phase? Or has a fixed term been specified for your project and you want to plan specific project start and end dates? In both cases, the Schnitzer Group’s practical Calendar Week Calculator app gives you the perfect support.

It makes the following calculations really easy:

  • Input start date + duration in weeks = Output end date
  • Input end date + duration in weeks = Output start date
  • Input start date + end date = Output duration in weeks


The Schnitzer Group’s Calendar Week Calculator app corresponds to the ISO 8601 standard, which is used in Germany and in most European countries. You can find it in the App Store for iOS devices or download it directly here:


Link App Store              Link for immediate download