A TOTO calculator does two jobs: it tells you what a bet will cost before you pay, and it tells you what you have won after the draw. Both come down to one rule from Singapore Pools, the only legal operator: every six-number combination costs exactly $1. Once you know that, you can price any System entry in your head, and the official prize calculator on the Singapore Pools site or app does the winnings side for you against the published results. This guide gives you both halves. We map each bet type to its cost and the combinations it buys, lay out the full prize table, and run the odds and expected value with verified June 2026 figures, so you know exactly what you are buying for your dollar.
People search for a TOTO calculator for one of two reasons. The first is the cost side: you want to pick more than six numbers and you need to know what that System bet will run you before you commit. The second is the prize side: the draw is over, you matched a few numbers, and you want to know if you won anything and how much.
The cost side never needs an app. Singapore Pools charges a flat $1 for every six-number combination your entry covers, GST included, so the price of any bet is simply the number of combinations it generates. The prize side is harder to do by hand because four of the seven prize groups pay a share of a pool that changes every draw and is split among co-winners. That is the part the official prize calculator on the Singapore Pools website and the Singapore Pools app handles, by reading the actual results and prize amounts for the specific draw you entered.
Below we give you the cost formula for every bet type, then the full prize structure, so you can sanity-check anything a calculator tells you.
An Ordinary Entry is six numbers from 1 to 49 for $1, covering one combination. A System entry lets you pick 7 to 12 numbers, and it automatically buys every six-number combination among them. System Roll fixes five of your numbers and lets the sixth roll through all 44 remaining numbers, covering 44 combinations. The cost is always the combination count times $1, with a minimum bet of $1.
The maths behind the combination count is the choose function: System 8 picks 8 numbers, and the number of ways to choose 6 from 8 is 28, so it costs $28. There is no bulk discount anywhere in the table, which is the single most important thing a TOTO calculator reveals: bigger bets buy more chances at the exact same unit price, never a better one. The table below uses Singapore Pools' published bet types as of June 2026.
If you want to see what that same weekly outlay would do invested instead of staked, run it through our compound interest calculator before you decide how much fun you can afford.
| Bet type | Numbers picked | Combinations | Cost | Jackpot odds (1 in...) |
|---|---|---|---|---|
| Ordinary | 6 | 1 | $1 | 13,983,816 |
| System 7 | 7 | 7 | $7 | 1,997,688 |
| System 8 | 8 | 28 | $28 | 499,422 |
| System 9 | 9 | 84 | $84 | 166,474 |
| System 10 | 10 | 210 | $210 | 66,590 |
| System 11 | 11 | 462 | $462 | 30,268 |
| System 12 | 12 | 924 | $924 | 15,134 |
| System Roll | 5 + rolling | 44 | $44 | 317,814 |
A full System 12 costs $924, which prices most casual players out. iTOTO is Singapore Pools' shared-bet answer: it takes one Quick Pick System 12 and divides it into 28 equal units. As of June 2026 each unit costs $33, so you own one twenty-eighth of an entry that covers all 924 combinations.
The calculator point here is subtle. iTOTO does not change the maths, it changes the slicing. You get a far wider spread of numbers than your $33 would buy as Ordinary Entries, but any prize that lands is divided 28 ways before it ever reaches you. A jackpot won on an iTOTO unit is your unit's share of the Group 1 pool, then split again if other tickets outside your iTOTO also matched. It buys coverage and a smaller, shared payout, not better odds per dollar.
TOTO returns 54% of each draw's sales to the prize pool. That pool is carved into seven groups. The top four pay a percentage of the pool and are shared equally among every ticket that matches at that level, so the per-winner amount is never fixed in advance, which is exactly why you need the official calculator to read it off the real draw. Groups 5, 6 and 7 pay fixed cash amounts that never change.
To use the prize side, you match your entry against the six Winning Numbers plus one Additional Number for that draw. Matching at least three Winning Numbers wins something. The table shows the structure verified against Singapore Pools as of June 2026.
Because the top groups snowball when unclaimed, the Group 1 amount you see advertised before a draw is a floor, not the final figure. The minimum guaranteed jackpot is $1,000,000, and it rolls forward for up to four draws if nobody wins it, while Groups 2, 3 and 4 keep snowballing until claimed.
| Group | You match | Prize | Odds (1 in...) |
|---|---|---|---|
| 1 (Jackpot) | 6 numbers | 38% of pool, min. $1,000,000 | 13,983,816 |
| 2 | 5 + Additional | 8% of pool | 2,330,636 |
| 3 | 5 numbers | 5.5% of pool | 55,491 |
| 4 | 4 + Additional | 3% of pool | 22,197 |
| 5 | 4 numbers | Fixed $50 | 1,083 |
| 6 | 3 + Additional | Fixed $25 | 812 |
| 7 | 3 numbers | Fixed $10 | 61 |
| Any prize | 3 or more | Varies | 54 |
There are three reliable ways to calculate a TOTO win, and all of them read from the same official results. The fastest is the prize calculator on the Singapore Pools website or the Singapore Pools app: you enter your numbers and the draw, and it returns your group and prize. The second is to scan your ticket at a Singapore Pools outlet, which checks and pays out in one step. The third is to do it by hand against the published Winning and Additional Numbers and the prize table above.
Doing it by hand is only fiddly for the top four groups, because their payout depends on how many other people won and on the pool size that draw. For Groups 5 to 7 the answer is immediate: $50, $25 or $10 respectively, per winning combination. A System or iTOTO entry can win in several groups at once from a single draw, since it holds many combinations, which is another reason the official tool earns its keep.
Prizes above $5,000 are paid at the Singapore Pools Main Branch, and winnings must be claimed within 180 days of the draw. The numbers move every draw, so date-stamp whatever a calculator tells you.
The headline odds are unforgiving. A single Ordinary Entry has a 1-in-13,983,816 chance at the jackpot, which is just the number of ways to choose 6 numbers from 49. The chance of winning any prize at all is about 1 in 54, and almost every one of those wins is the fixed $10 or $25 at the bottom. A System bet improves your jackpot odds in exact proportion to its cost: a System 12 is 924 times likelier than an Ordinary Entry, because you bought 924 times as many lines.
Expected value is where a calculator stops being fun. With 54% of sales returned as prizes and the top groups frequently split among multiple winners, the long-run value of a $1 ticket sits around $0.54, an expected loss of roughly 46 cents on every dollar. That 46% is the structural margin that funds operating costs, GST and the Tote Board. For comparison, parking the same money in a fixed deposit or a Singapore Savings Bond returns close to all of it plus interest.
Even the record wins reinforce the maths rather than break it. The largest single-ticket TOTO prize in Singapore history was S$13.12 million on 9 May 2024, paid out of pools fed by millions of losing tickets. If you treat TOTO as entertainment with a fixed budget that you check against our personal budget calculator, the odds do not need to bother you. If you treat it as a savings plan, the expected value should.
Yes. The Singapore Pools website and the Singapore Pools app both have a prize calculator that checks your numbers against a specific draw and returns your prize group and amount. For the cost of a bet, the rule is simply $1 per six-number combination, so no tool is needed to price an entry.
Count the six-number combinations your entry covers and multiply by $1. System 7 covers 7 combinations ($7), System 8 covers 28 ($28), up to System 12 which covers 924 combinations ($924). System Roll covers 44 combinations for $44. The minimum bet is $1 for one Ordinary Entry.
Matching exactly three Winning Numbers is a Group 7 win, which pays a fixed $10 per combination. Matching three Winning Numbers plus the Additional Number is a Group 6 win, which pays a fixed $25. These amounts do not change between draws, unlike the top four groups.
No. Every combination costs exactly $1 whether you buy it as an Ordinary Entry or inside a System bet, so there is no discount. A System bet only raises your odds in lockstep with what you spend. Picking less popular numbers does not improve odds either, but it means fewer co-winners to split a shared prize with.
This is general financial information for Singapore, not personal financial advice. Figures change — verify current rates against the official sources above before acting. See our full disclaimer.