Find the +EV slot before someone else does: EdgeTilt slot calculators (2026)

Some slot machines are worth more than they cost to play, because the last player left value on the meter, the counter or the board. EdgeTilt's slot calculators read what the machine shows right now and turn it into an RTP or dollar estimate with a clear verdict: play it, or keep walking. Five are free with a free account.

In short A slot left in the right state can be worth more than it costs to play. The calculators read meters, counters and boards and give you a play or walk verdict. Free: Buffalo Link, Must Hit By, Temple Falls, Bonus Builder, Wolf Run Eclipse. Size each play to your bankroll, then log it with one tap.

From the aisle, a +EV machine and a dead one look the same.

The trouble is telling them apart. A fat meter looks exciting whether it's worth playing or not. A half-built bonus looks close either way. Your gut says "hot" either way, and your gut has never done the math.

The calculators have. You type in what's on the glass, and you get a number and a verdict before someone else sits down.

Why use a calculator instead of your gut?

• It sees value you can't eyeball. A meter, counter or coin board turns into an RTP percent or a dollar figure. On the calculators that show an RTP percent, over 100% means the play is worth more than it costs, on average. Must Hit By shows Expected Value in dollars instead.
• It saves you from the traps. Plenty of machines look loaded and aren't. A "Still -EV Keep Waiting" verdict is money you didn't spend.
• It's fast. A few taps, or a photo on the calculators that scan.
• It plans the whole play. Not just "sit down," but when to walk, how much your bankroll can take, and a one-tap record of how it went.

Make a free account and open Must Hit By

Five free calculators to start finding +EV plays

Sign up for a free EdgeTilt account, open Slots, then Calcs, and these five are ready.

Buffalo Link: is this counter worth chasing?

Type the counter, pick your bet and denomination. On the board above, a counter of 1547 at a $25.00 spin reads 115.5% RTP. You get two views of the same play: Average Case (11.5×, $287.93, max exposure 54 bets) and Full Run to 1800 (3.0×, $75.85, max exposure 107 bets). Verdict: PLAY +EV Expected.

Buffalo Link is also where you'll find the Walk-Away Advisor. More on that in a sec.

Must Hit By: is this progressive close enough to the cap?

Pick a preset for Ainsworth, AGS or IGT games, or go Manual for any must-hit-by game. Enter the meter and the must-hit-by amount. Above, a $9,894.27 meter on a $10,000 must hit by reads $2,748 Expected Value, with a breakeven entry of $9,827. Verdict: +EV PLAY THIS ONE.

Want the full walkthrough? It covers how to measure the meter rise and when to use the midpoint switch: How Must-Hit-By jackpots work.

Temple Falls: is this coin board loaded?

Pick your cabinet (Temple Falls with all 7 rows showing, or Boost Blast with the bottom 5 rows showing). Then tap each coin and pick its value, or hit Scan the board (photo or upload). Blank coins count as the smallest coin, so you only enter the big ones and the wheels.

The calculator shows how the play looks if you ride through 1 to 5 Coin Collect features and stars the best one. When none of them clears 100%, you get Still -EV Keep Waiting. That's the calculator keeping your money in your pocket.

Bonus Builder: which color is ready?

Each color gets its own card. Tap the extra rows per reel to set the ways, then slide spins and symbols removed, and the card shows what that bonus pays now. On this board, Red pays 141.0× ($112.78), Blue 21.0× ($16.82) and Purple 92.3× ($73.84). Or let Scan the machine (photo or upload) fill it in from a photo of the top screen.

Wolf Run Eclipse: which jackpot is worth the chase?

Slide the Mega, Major, Minor and Mini meters to match the machine. The little ▼ on a slider is the take point: the reading where that meter's own chase breaks even on average at 88% RTP, with the other three at their average state. Then pick your chase. A Mini chase stops at the first jackpot of any kind and is the conservative read. Above, the Mini chase reads 110.4% RTP, an average of 22.4× ($17.92) over about 214 spins, with $172 coin-in expected.

Phoenix Link, Wheel of Fortune 4D CE and more are Pro calculators.

What is the Walk-Away Advisor?

It answers one question: when should I think about getting up, even though the machine is still +EV?

First, the part that doesn't change. +EV is still +EV. If the machine is in a positive state, every spin is worth more than it costs, on average. Getting ahead doesn't change that.

So why walk away? Volatility. Buffalo Link swings hard. Even with plenty of value left in the machine, big drawdowns show up often, and if you get ahead, one can take it back fast. The Walk-Away Advisor suggests a profit level, counted in bets, where locking it in starts to beat riding out the next swing.

Where does that number come from? It weighs the value left in the machine against how likely you are to give a profit back, using simulated plays. In plain terms, it turns "what the math says on average" into "a sensible point to cash out." It's a suggested stopping point, not a rule. Play past it and each spin is still +EV. You're just taking on more of the swing.

Type a counter into Test Counter and it shows a Recommended Walk-Away in bets and dollars at your bet. At 1624 on a $25.00 spin, that's +87 bets ($2175). The chart plots the walk-away for counters from 1300 to 1860: flat around 75 bets through the low 1500s, then climbing toward about 160 bets near 1860. The card underneath gives the advice for the counter you entered up top: at 1547, walk away around +75 bets ($1875).

What is Bankroll Risk?

Here's the thing. A +EV play can still lose. So Bankroll Risk asks the blunt question: can your bankroll take the bad version of this play?

It pulls your bankroll from the Bankroll Manager, so there's nothing to type. You set how much you're willing to risk on one play with the - / + stepper (1% here). Then it lays out:

• Bankroll: your overall bankroll ($127,344).
• Budget: your risk percent of it ($1,273 at 1%).
• Potential Loss: what a bad run on this play could cost ($1,674).
• Your coverage: how much of that your budget covers ($1,273, 76%).

When the play is bigger than your budget, it says so: "Your risk profile and bankroll dictate $19.0 is the maximum action you should take on this play." Then it offers a fix: "Consider selling $6.0 (24%) of action on this $25.0 play." Play the part your roll can carry, and sell the rest.

On Must Hit By, the Potential Loss curve has a Bad-session tail slider, and Bankroll Risk uses the loss at that marker.

Every session you log in the Bankroll Manager moves your bankroll, so the next play is sized to what you have now. How the Bankroll Manager works.

How do the calculators connect to the Play Logbook?

Tap Log play in Logbook and the play goes into your Play Logbook with the game fields, Current EV, Average Case and acquisition fee already filled in from the calculator. You add how it went. No calculator? No problem. Tap + Log Play in the Logbook to log any play, any time.

Log every play, and you end up with a record of what the math said next to what actually happened. How the Play Logbook works.

Which calculator should you open first?

• A progressive with a must-hit-by amount on the glass? Must Hit By.
• Buffalo Link with a counter? Buffalo Link.
• A Temple Falls or Boost Blast coin board? Temple Falls.
• Bonus Builder: Emerald Spins? Bonus Builder.
• Wolf Run Eclipse? Wolf Run Eclipse.

Make a free account and start with Must Hit By

Keep going

• How Must-Hit-By jackpots work: presets, manual setup and the midpoint switch.
• Bankroll Manager: the bankroll Bankroll Risk reads.
• Play Logbook: where your logged plays live.
• What is advantage play on slots?: the big picture.