A simple calculator to determine the percentage of unsubscribes from your email campaigns based on the number of unsubscribes and delivered emails. Formula: (Unsubscribes ÷ Delivered Emails) × 100
A professional medical exam score estimator that converts NBME/UWSA practice exam percentages to 3-digit USMLE scores and percentile estimates. Designed for Step 1, Step 2 CK and Step 3 preparation tracking.
A condensed calculator with predefined numbers. Click numbers to select, then press + or - to accumulate to total. Backspace removes the last operation from total and history. History scrolls horizontally without stretching the calculator. Total and preview displayed at top.
A highly condensed calculator with custom number buttons in rows of 5, featuring a fixed scrollable history section, total display, and number preview.
A condensed calculator with preset numbers for adding and subtracting. Numbers displayed in red (integers) or purple (decimals). History scrolls horizontally without expanding the calculator size.
A highly condensed calculator for adding and subtracting predefined numbers with unlimited operations. Red buttons are whole numbers, purple buttons are decimals, green +, blue -, yellow for backspace/reset. Dark themed with scrollable history.
A condensed calculator with red number buttons, purple decimal buttons, green plus, blue minus, yellow reset/backspace, dark background, horizontal scrollable history, total at top-right, and preview at top-left.

