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South Africa Lotto Plus 2
Statistics
Archived Numbers

Lotto Odds Calculator

The Lotto Odds Calculator enables users to calculate the odds of winning the jackpot and additional prize levels for any given lottery.

To use the calculator, type in the number matrix, select the number of prize tiers and tick whether the lottery includes a bonus ball. If the lottery includes a bonus number, additional options will appear specifying the bonus variables. Alternatively, select a lottery from the Popular Lotteries dropdown menu to automatically display the odds table.

Lotto Odds Calculator
Balls to be drawn:
Total number of prize levels:
From a pool of:
Tick to include bonus balls:
Numbers Matched
Calculated Odds
Show/Hide Calculations
6 Main Numbers
1 in 20,358,520

The odds for this prize level are not influenced by any "Bonus Balls" and only the variables associated with the main ball pool are required to calculate the correct odds. The following formula is therefore used (Please note: calculations have been rounded):

C(n,r)
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
C(6,6) × C(52-6, 6-6)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 6 (balls to be matched from the main pool)
52!
6! × (52-6)!
6!
6! × (6-6)!
×
46!
0! × (46-0)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,6) = 6! ÷ (6! × (6-6)!)
C(52-6, 6-6) = 46! ÷ (0! × (46-0)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
1 × 1
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
6! ÷ (6! × (6-6)!) = 1
46! ÷ (0! × (46-0)!) = 1
20,358,520
1
=
20,358,520
Calculate: 20,358,520 ÷ (1 × 1) = 20,358,520
5 Main Numbers + Bonus Ball
1 in 3,393,087

The odds for this prize level are directly influenced by the Bonus Ball. Since the Bonus Ball is drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
r - m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
6 - 5
52 - 6
×
C(6,5) × C(52-6, 6-5)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 5 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
6 - 5
52 - 6
×
6!
5! × (6 - 5)!
×
46!
1! × (46 - 1)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,5) = 6! ÷ (5! × (6-5)!)
C(52-6, 6-5) = 46! ÷ (1! × (46-1)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.0217 × 6 × 46
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(6-5) ÷ (52-6) = 0.0217
6! ÷ (5! × (6-5)!) = 6
46! ÷ (1! × (46-1)!) = 46
20,358,520
6
=
3,393,087
Calculate: 20,358,520 ÷ (0.0217 × 6 × 46) = 3,393,087
5 Main Numbers
1 in 75,402

The odds for this prize level are indirectly influenced by the Bonus Ball. Even though this prize level only involves matching 5 main numbers, the fact that you can also match 5 main numbers and a Bonus Ball means the odds of matching 5 main numbers alone are increased. Since the Bonus Ball is also drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
n - r - r + m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
52 - 6 - 6 + 5
52 - 6
×
C(6,5) × C(52-6, 6-5)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 5 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
52 - 6 - 6 + 5
52 - 6
×
6!
5! × (6 - 5)!
×
46!
1! × (46 - 1)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,5) = 6! ÷ (5! × (6-5)!)
C(52-6, 6-5) = 46! ÷ (1! × (46-1)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.9783 × 6 × 46
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(52-6-6+5) ÷ (52-6) = 0.9783
6! ÷ (5! × (6-5)!) = 6
46! ÷ (1! × (46-1)!) = 46
20,358,520
270
=
75,402
Calculate: 20,358,520 ÷ (0.9783 × 6 × 46) = 75,402
4 Main Numbers + Bonus Ball
1 in 30,161

The odds for this prize level are directly influenced by the Bonus Ball. Since the Bonus Ball is drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
r - m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
6 - 4
52 - 6
×
C(6,4) × C(52-6, 6-4)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 4 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
6 - 4
52 - 6
×
6!
4! × (6 - 4)!
×
46!
2! × (46 - 2)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,4) = 6! ÷ (4! × (6-4)!)
C(52-6, 6-4) = 46! ÷ (2! × (46-2)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.0435 × 15 × 1,035
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(6-4) ÷ (52-6) = 0.0435
6! ÷ (4! × (6-4)!) = 15
46! ÷ (2! × (46-2)!) = 1,035
20,358,520
675
=
30,161
Calculate: 20,358,520 ÷ (0.0435 × 15 × 1035) = 30,161
4 Main Numbers
1 in 1,371

The odds for this prize level are indirectly influenced by the Bonus Ball. Even though this prize level only involves matching 4 main numbers, the fact that you can also match 4 main numbers and a Bonus Ball means the odds of matching 4 main numbers alone are increased. Since the Bonus Ball is also drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
n - r - r + m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
52 - 6 - 6 + 4
52 - 6
×
C(6,4) × C(52-6, 6-4)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 4 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
52 - 6 - 6 + 4
52 - 6
×
6!
4! × (6 - 4)!
×
46!
2! × (46 - 2)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,4) = 6! ÷ (4! × (6-4)!)
C(52-6, 6-4) = 46! ÷ (2! × (46-2)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.9565 × 15 × 1,035
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(52-6-6+4) ÷ (52-6) = 0.9565
6! ÷ (4! × (6-4)!) = 15
46! ÷ (2! × (46-2)!) = 1,035
20,358,520
14,850
=
1,371
Calculate: 20,358,520 ÷ (0.9565 × 15 × 1,035) = 1,371
3 Main Numbers + Bonus Ball
1 in 1,028

The odds for this prize level are directly influenced by the Bonus Ball. Since the Bonus Ball is drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
r - m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
6 - 3
52 - 6
×
C(6,3) × C(52-6, 6-3)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 3 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
6 - 3
52 - 6
×
6!
3! × (6 - 3)!
×
46!
3! × (46 - 3)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,3) = 6! ÷ (3! × (6-3)!)
C(52-6, 6-3) = 46! ÷ (3! × (46-3)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.0652 × 20 × 15,180
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(6-3) ÷ (52-6) = 0.0652
6! ÷ (3! × (6-3)!) = 20
46! ÷ (3! × (46-3)!) = 15,180
20,358,520
19,800
=
1,028
Calculate: 20,358,520 ÷ (0.0652 × 20 × 15180) = 1,028
3 Main Numbers
1 in 72

The odds for this prize level are indirectly influenced by the Bonus Ball. Even though this prize level only involves matching 3 main numbers, the fact that you can also match 3 main numbers and a Bonus Ball means the odds of matching 3 main numbers alone are increased. Since the Bonus Ball is also drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
n - r - r + m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
52 - 6 - 6 + 3
52 - 6
×
C(6,3) × C(52-6, 6-3)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 3 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
52 - 6 - 6 + 3
52 - 6
×
6!
3! × (6 - 3)!
×
46!
3! × (46 - 3)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,3) = 6! ÷ (3! × (6-3)!)
C(52-6, 6-3) = 46! ÷ (3! × (46-3)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.9348 × 20 × 15,180
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(52-6-6+3) ÷ (52-6) = 0.9348
6! ÷ (3! × (6-3)!) = 20
46! ÷ (3! × (46-3)!) = 15,180
20,358,520
283,800
=
72
Calculate: 20,358,520 ÷ (0.9348 × 20 × 15,180) = 72
2 Main Numbers + Bonus Ball
1 in 96

The odds for this prize level are directly influenced by the Bonus Ball. Since the Bonus Ball is drawn from the same pool as the main numbers, the following formula is used (Please note: calculations have been rounded):

C(n,r)
r - m
n - r
×
C(r,m) × C(n-r, r-m)
C(n,r) = Odds of correctly choosing r balls from n
n = Number of balls in the main pool
r = Balls drawn from the main pool
m = Balls to be matched from the main pool
C(52,6)
6 - 2
52 - 6
×
C(6,2) × C(52-6, 6-2)
Substitute: n for 52 (number of balls in the main pool)
r for 6 (balls drawn from the main pool)
m for 2 (balls to be matched from the main pool)
52!
6! × (52 - 6)!
6 - 2
52 - 6
×
6!
2! × (6 - 2)!
×
46!
4! × (46 - 4)!
Expand: C(52,6) = 52! ÷ (6! × (52-6)!)
C(6,2) = 6! ÷ (2! × (6-2)!)
C(52-6, 6-2) = 46! ÷ (4! × (46-4)!)
! means 'Factorial' eg: 52! = 52 × 51 × 50 ... × 1
Note: 0! = 1
20,358,520
0.0870 × 15 × 163,185
Simplify: 52! ÷ (6! × (52-6)!) = 20,358,520
(6-2) ÷ (52-6) = 0.0870
6! ÷ (2! × (6-2)!) = 15
46! ÷ (4! × (46-4)!) = 163,185
20,358,520
212,850
=
96
Calculate: 20,358,520 ÷ (0.0870 × 15 × 163185) = 96

Approx. Overall Odds*: 1 in 38

Odds for popular lotteries:

How to use the Lotto Odds Calculator

Enter the number of balls to be drawn Enter the total number of balls from which these are drawn Choose the total number of prize levels the lottery has, eg: Match 6, Match 5, Match 4 and Match 3 would be 4 levels If the lottery includes 'bonus' numbers eg: a Powerball, tick the "include bonus balls" box If the box has been ticked, a dropdown menu will appear in a similar style to the original fields. Enter the number of 'bonus' numbers to be drawn, the size of the pool it/they are drawn from, and the amount of prize levels that involve matching the bonus number. Finally, select the name of the bonus number from the remaining dropdown box Click the "Calculate Odds" button to view the odds, or to start again, click Reset.

Alternatively you can choose a lottery from the "Popular Lotteries" dropdown menu at the bottom of the form to quickly input the variables for your chosen lottery and auto-display the odds table.

*Please note, the overall odds of winning a prize does not take into account the chance of winning guaranteed prizes (for lotteries that offer them), because the odds of winning a raffle prize fluctuates based on how many tickets were purchased for each draw.

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