Use the Final Year Grade Calculator to combine your four term grades and final exam score into one accurate year grade and letter.

Use the Gpa Final Calculator to work out the exact GPA you need this term to reach your target cumulative GPA by graduation day.

Use the Midterm Grade Calculator to find the exact score you need on your midterm exam to reach the class standing you want most.

Convert start and end times into decimal hours with the Timesheet Conversion Calculator, minus breaks, ready for payroll and invoices.

Count the exact days and weeks between today and any date with the Countdown Date Calculator, for deadlines, events, trips, and plans.

Count Monday-to-Friday working days between any two dates with the Days Worked Calculator, plus total calendar days for payroll and plans.

Estimate next-day delivery by weight and zone with the Overnight Shipping Cost Calculator, a quick planning tool for urgent parcels.

Use the Lifting Calculator to find your total training volume and estimated one-rep max from any set — enter weight, reps and sets.

Use the Squat Calculator to turn a percentage of your one-rep max into a working weight, with the exact plates to load on each side.

Use the Z Chart Calculator to find the cumulative area to the left of any z score, shown as a proportion and a percent in one step.