Free calculator

FanDuel bonus bet and no-sweat value calculator

Compare cash wagers, stake-not-returned bonus bets and loss-triggered bonus credits using your own offer terms. A bonus win pays face value times decimal odds minus one. A loss-triggered credit has a separate expected redemption value; it is not a cash refund. Probabilities are your assumptions, not predictions.

Get a free API key Read the docs

FanDuel API is an independent data service operated by FF API Inc. It is not affiliated with, endorsed by or sponsored by FanDuel.

Your inputs

Funding / reward modelChoose the cash-flow convention that matches your actual terms.Cash stake or bonus face ($)Cash at risk in cash/credit mode; bonus face value in bonus mode. 0.01–1,000,000.Initial quoted oddsAmerican +100 or −110; decimal 2.0; fractional 1/1. Maximum decimal 1001.Assumed initial win probability (%)0–100. Your estimate, not the quoted price’s implied probability.Loss-credit rate (%)Hypothetical reimbursement percentage; enter the actual offer. 0–100.Maximum loss-credit face ($)Offer-specific cap, not a promised cash refund.Bonus redemption quoted oddsOdds assumed for the later stake-not-returned bonus wager.Conditional redemption win probability (%)Chance the redemption wins, conditional on the initial loss and use of the credit.Chance credit is issued and used (%)Conditional on initial loss: includes qualification and redemption before expiry. Set 0 if no credit is used.

Calculated result

Modeled expected net cash: $25.00
Net cash if initial bet wins: $100.00
Expected net if initial bet loses: -$50.00
Credit face value on an eligible loss: $100.00
Conditional expected credit cash value: $50.00
Break-even initial win probability: 33.33%

Show the working

Modeled expected net cash
p × win-state net + (1 − p) × loss-state expected net. Modeled EV is nonnegative at or above 33.3333% initial win probability.

Net cash if initial bet wins
Cash stake × (decimal − 1)

Expected net if initial bet loses
−cash stake + conditional expected credit value

Credit face value on an eligible loss
min(cash stake × credit rate, credit cap); this is not cash

Conditional expected credit cash value
credit face × (redemption decimal − 1) × conditional redemption win probability × chance credit is issued and used

Break-even initial win probability
Modeled EV is nonnegative at or above 33.3333% initial win probability.

Formula and worked example

EV = p × win-state net cash + (1 − p) × loss-state expected net cash. Bonus winnings = face × (decimal − 1).

A $100 cash wager at +100 with 50% assumed win probability has $0 EV. If an eligible loss issues a $100 bonus, used at +100 with a conditional 50% chance of winning and 100% issuance/use probability, modeled EV is $25; the loss state still averages −$50.

Default example output	Value
Modeled expected net cash	$25
Net cash if initial bet wins	$100
Expected net if initial bet loses	$-50
Credit face value on an eligible loss	$100
Conditional expected credit cash value	$50
Break-even initial win probability	33.3333%

Inputs are hypothetical, not an available offer. Check opt-in, eligibility, maximum credit, expiry, eligible markets and settlement. No pushes, voids, taxes, mixed funding or repeated rewards are modeled. A positive expected value is not guaranteed profit.

Rules reference: FanDuel’s published guidance, reviewed November 7, 2026. Mathematical model shown above; actual offer terms take precedence.

Use the market data in your app

Read game market prices through GET /api/v1/markets and player props through GET /api/v1/props. The API reference describes available fields, filters and data access.

Related calculators

FanDuel hedge calculatorHedge stake = original stake × original decimal price ÷ hedge decimal price.FanDuel same game parlay calculatorIndependent probability = product of no-vig leg probabilities. Ratio = quoted implied probability ÷ independent probability.FanDuel parlay calculatorReturn = stake × [1 + (product of active decimal prices − 1) × (1 + boost)].FanDuel profit boost calculatorBoosted decimal odds = 1 + (original decimal odds − 1) × (1 + boost).FanDuel odds converterd = 1 + A/100 for positive odds; d = 1 + 100/|A| for negative odds. Implied probability = 1/d.FanDuel payout calculatorTotal return = stake × decimal odds; net profit = total return − stake.FanDuel no-vig calculatorFair probabilityᵢ = (1/decimalᵢ) ÷ sum(1/decimal).FanDuel round robin calculatorEligible combinations exclude repeated game IDs. Total stake = eligible combinations × stake per parlay.FanDuel dead heat calculatorReturn = stake × remaining places ÷ tied competitors × decimal odds.FanDuel cash-out value calculatorModeled value = original stake × original decimal odds × current assumed win probability.

Educational calculations only. Responsible gambling resources.

Bonus credit is not a cash refund

FanDuel’s bonus-bet guidance distinguishes winnings-only bonus stakes from cash and site credit. This tool models a bonus-only stake or a cash-only stake, not a mixture. Its rewards overview now calls the former No Sweat reward Bet Reset. No current offer, eligibility, reimbursement cap or redemption price is assumed.

For a loss-triggered credit, its face value is capped before calculating the later expected cash winnings. The initial cash loss remains part of the result. Redemption probability is conditional on that loss; no independence between the two wagers is required by this input model.

With a $100 bonus at +200, a $10 acquisition cost and a 50% win assumption, win-state net cash is $190, loss-state net cash is −$10 and EV is $90. Break-even is 5%. This does not value other uses of the bonus or recommend a wager.

The optional equal-result hedge assumes two exhaustive opposite outcomes, accepted quoted prices and matching settlement. It ignores voids, pushes, deductions and execution changes, and can produce a negative modeled result. Do not treat it as a guaranteed return.

Sources reviewed November 7, 2026: bonus bet rules and rewards overview. Check your own offer for actual terms.

Questions

How does the fanduel bonus bet and no-sweat value calculator work?

What is the formula?

Can you show a worked example?

What rules and limitations matter?

Are these live prices?

Does total return include the stake?

Make your first call in a few minutes

Sign up, create a key in the dashboard, and send it as a Bearer token. The free plan needs no card and reads the same data five minutes behind.

Get a free API key