Keep track of your calculations by simple structures.

VIRTUAL PAPER TAPE:
Scroll up and down through the virtual paper tape of your calculation and update individual positions or change typos - SFR Calculator corrects the result immediately.

OVERVIEW BY ANNOTATIONS:
Annotate single positions and summarize your calculation in paragraphs with words and sentences.

SAVE PATTERNS:
Save your recurrent calculations as patterns. Simply change the figures of a saved calculation with current numbers.

Try SFR Calculator for 30 days without any constraints until a commercial license is needed.

Visit www.sfr-calculator.com for further information.