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Lottery Syndicate Calculator

Split a prize by member shares. For equal shares, enter 1 for each member.

Total allocated: —

Fill in the fields above — the result is computed on this page.

Members
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Total shares
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Calculation details

Lottery Syndicate Calculator
Member Shares Prize share Allocation
Fill in the fields above — the result is computed on this page.
What do these numbers mean?
  • We compute it from the formula shown below — not from a prediction model and not from draw history.
  • Worked example: 100 split equally between three members gives 33.34, 33.33 and 33.33. This allocation rule does not create a group agreement.

The numbers come from the formula and the values you typed above. They are not a forecast — no calculator changes the probability of a single draw.

How do I use this page?
  1. Enter your data and check the input limits.
  2. Read the result and the detail table when available.
  3. Change the inputs to compare scenarios. Calculations run locally in your browser.

What this page does not do: It does not point to numbers to play and does not predict a draw — every draw is independent of the previous ones.

Further reading

Formula

Aᵢ = A × sᵢ / Σs
Enter positive whole-number shares, such as 1; 2; 1. Contributions of 10, 20 and 10 can be expressed as shares of 1; 2; 1. Maximum 100 members. All amounts use the same currency with two decimal places. This tool does not calculate tax: enter the amount available for distribution.
Theory — how is a prize split between participants?

The calculator divides the entered amount among participants according to the shares provided, which must be positive whole numbers, for example 1, 2, 1. Shares can also be derived from individual contributions — amounts of 10, 20 and 10 produce exactly the same shares of 1, 2, 1. The calculator supports up to 100 people, and all amounts are expressed in the same currency with two decimal places. For an equal split, simply enter a share of 1 for each member.

Frequently asked questions

How do I split a prize equally?
Enter the amount available to split and a share of 1 for each member. For three members, enter 1; 1; 1.
How does the calculator allocate leftover cents?
It first rounds each allocation down to a cent. Remaining cents go to the largest fractional remainders; ties follow entry order. Allocations sum to the entered amount.
Does the calculator include tax?
No. Enter the amount available for distribution after deductions. The calculator does not replace an agreement between members.

See also

← All calculators

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My saved selections

Selections saved only in this browser. Numbers are shown exactly as saved; this is not a lottery ticket.

Open the My saved selections hub
Restore with preview

Restore in the hub: review the file and confirm first. Both old backups and the complete selections + journal backup are supported. Nothing is uploaded.