You could create a table with 3 columns: distance, time, pace. Set the display format for time and pace to "Duration". Enter these formulas: distance = time

You could create a table with 3 columns: distance, time, pace. Set the display format for time and pace to "Duration". Enter these formulas: distance = time / pace time = distance * pace pace = time / distance Drag fill everything down. At this point you get reference errors, but once you enter any two values (thereby overwriting the formulas in those cells), you get your result.