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FanDuel profit boost calculator

A FanDuel profit boost increases the winnings portion of a bet, while returning the original stake unchanged. Convert the quoted price to decimal odds, subtract one, multiply by one plus the boost percentage, then add one. Multiply that boosted price by the stake to calculate total return before any deductions.

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Your inputs

OddsAmerican +200 or −110, decimal 3.0, or fractional 2/1.Stake ($)Original cash stake.Profit boost (%)Use the percentage on your token. A boost applies to profit, not the returned stake.Token maximum stake ($), optionalTaken from your actual offer.Token minimum odds, optionalA quoted price shorter than this minimum is rejected.

Calculated result

Total return: $35.00
Net profit: $25.00
Boosted decimal odds: 3.5
Boosted American odds: 250

Show the working

Total return
10 × [1 + (3.000000 − 1) × (1 + 0.25)]

Net profit
Total return − stake

Boosted decimal odds
1 + original profit multiple × (1 + boost)

Boosted American odds
Convert boosted decimal odds to American

Formula and worked example

Boosted decimal odds = 1 + (original decimal odds − 1) × (1 + boost).

A $10 bet at +200 with a 25% profit boost has $25 profit and a $35 total return. Boosting the full $30 return would be incorrect.

Default example output	Value
Total return	$35
Net profit	$25
Boosted decimal odds	3.5
Boosted American odds	250

Enter the actual offer’s percentage and observe its maximum stake, minimum odds, eligible markets and expiry. This calculator does not determine whether your account or bet is eligible.

Rules reference: FanDuel’s published guidance, reviewed November 6, 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.

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Educational calculations only. Responsible gambling resources.

Questions

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