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Formula
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| Total number of types of items (n) | 5 |
|---|---|
| Number of items to choose (r) | 3 |
Calculate combinations (nCr) with this easy-to-use tool. Input the total number of items (n) and items to choose (r) to find all possible combinations quickly and accurately.
Enter the number of item types (n) and positions to fill (r) to get the count of ordered arrangements with repetition allowed, computed as n^r.
Calculate percentages easily with this Percentage Calculator. Input numbers and select from options like percentage of a number, number as a percentage of another, or percentage change between two numbers for quick results.
Calculate percent change from original and new values. See increase or decrease, the difference, and absolute percent change in seconds.
Enter two points (X1, Y1) and (X2, Y2) to compute rise, run, slope (m), and the line angle in degrees. Get instant results for math and physics.
Use this online stopwatch to measure time intervals precisely. Start, stop, and reset with ease.
Free online countdown timer. Set hours, minutes, and seconds to count down easily. Simple, fast, and useful for work, study, or daily tasks.
Simple online counter tool. Increase, decrease, or reset numbers instantly. Set custom step values and limits with ease.
Use our free online alarm clock to wake up, stay on schedule, or manage tasks. Set alarms quickly and customize sound and time right in your browser.