Calculate a Running Product lets you multiply a list of numbers step by step. As you enter each new value, the tool multiplies it with the product so far, showing a live sequence of results. Whether you’re building progressive calculations, analyzing growth, or tracking multipliers, this tool keeps the math clean and instant.
How to Use:
- Enter your numbers into the input box one per line.
- Or import them from a file using Choose File.
- Use the toggles to clean the input: trim spaces or skip blanks.
- Watch the product update live in the right-hand box.
- Copy or export your output once it’s ready.
What Calculate a Running Product can do:
This tool walks through your input list and multiplies each number into the running total. It starts with the first value as the base. Then it multiplies by the second, then by the third, and so on building a cumulative product line by line. If you input 2, 3, 4, 0.5, 10, you’ll get 2, 6, 24, 12, 120.
The Options box helps clean up any pasted input. Trim whitespace removes extra spaces before or after numbers. Ignore empty lines keeps the output tidy by skipping blank rows. With both toggles active, you can paste a messy list and still get clean, correct results instantly.
Everything updates as you type or import, with zero reloads or extra clicks.
Example:
Input:
2
3
4
0.5
10Output:
2
6
24
12
120Common Use Cases:
Calculate a Running Product is ideal for tracking compounded values, modeling growth, scoring multipliers, or building real-time math exercises. Whether you’re teaching, analyzing, or just experimenting with number sequences, this tool helps you focus on the results. Just paste, multiply, and go.
Useful Tools & Suggestions:
After building a running product, Calculate a Running Sum is a solid way to compare additive vs multiplicative trends. And if you’re working with long sequences, Truncate a List can help keep things manageable without losing the structure.