How to use the lottery odds calculator
Find the number of possible combinations and the odds of winning a lottery draw. Enter numbers in pool, numbers picked in the fields above; the possible combinations, odds of winning are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “lottery odds”, “chance of winning lottery”, “how many combinations”, “calculate lottery odds”, “find possible combinations”.
Formula
Variables
- n — Numbers in pool
- k — Numbers picked
Worked example
With numbers in pool = 49, numbers picked = 6, the calculator gives possible combinations ≈ 13,983,820 count; odds of winning ≈ 13,983,820 1 in.
Frequently asked questions
What is the lottery odds calculator used for?
Find the number of possible combinations and the odds of winning a lottery draw. It helps with questions such as “lottery odds”, “chance of winning lottery”, “how many combinations”.
What is the formula for the lottery odds calculation?
Possible combinations (count) = nCr(n,k). Odds of winning (1 in) = [Possible combinations]. Here n is numbers in pool, k is numbers picked.
What inputs do I need for the lottery odds calculator?
You need numbers in pool, numbers picked. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the lottery odds calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the lottery odds result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.