Free tool
Prize fund splitter
How it works
Enter your total prize fund and a percentage for each place, such as 50/30/20 for three places. The splitter rescales your percentages to sum to exactly 100 if they do not already, rounds each place down to a whole unit, and adds the small rounding leftover to 1st place so every amount sums to the fund exactly.
Percentages sum to 100%.
| Place | Share | Amount |
|---|---|---|
| 1st | 50.0% | ₹25,000 |
| 2nd | 30.0% | ₹15,000 |
| 3rd | 20.0% | ₹10,000 |
Amounts round down to the nearest whole rupee; the rounding remainder is added to 1st place so the total always equals the fund exactly. Illustrative only; check your event regulations before publishing a prize structure.
The method behind the numbers
Place amount = floor(fund x normalized share / 100); rounding remainder added to 1st place
Announcing a prize structure by percentage, such as 50/30/20 for three places, is easier to publish and compare across events of different sizes than a fixed rupee or dollar table, and it scales automatically if the entry count and total fund change closer to the event.
Splitting a fund by percentage almost never divides evenly: three places splitting 100% three ways, or an odd-numbered fund, produces fractional units. This tool rounds every place down to a whole unit first, then adds the small leftover from rounding to 1st place, the common convention, which keeps every published amount a clean whole number that sums to the fund exactly, with no leftover unaccounted for.
If your percentages do not add up to 100, which happens easily when a structure is edited by hand, the splitter rescales them proportionally before calculating amounts rather than silently ignoring the gap or overflow.
Sources
Frequently asked questions
Why does 1st place get the rounding remainder instead of it being split evenly?
Rounding every place down to a whole unit almost always leaves a small leftover, often just a few currency units on a large fund. Adding that leftover to 1st place is the simplest convention and avoids publishing fractional amounts for any place; some organizers instead add it to the largest place regardless of rank, which gives the same result when 1st place has the largest share.
My percentages add up to 97%, not 100%. What happens to the missing 3%?
The splitter rescales every percentage proportionally so they sum to exactly 100 before calculating amounts, so the missing 3% is distributed across all places in proportion to their existing share rather than left unallocated or added as a separate line.
Should special prizes, like best under-1400 or best junior, come out of this fund?
That is an event design decision, not a math one: some organizers carve special prizes out of the main fund percentage before splitting the open placings, others fund them separately. Decide that up front and split only the pool you intend for open placings here.
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