Fantasy Trade Calculator
Fantasy trade calculator works out Verdict and Side favoured from Values of what side A gives up, Values of what side B gives up and Sport. The default figures on this page give verdict of Side A gives up more value; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
3 steps
- Side A totals 10700 across 2 asset(s); side B totals 9800 across 1.
- Gap = 10700 - 9800 = 900, which is 8.41% of the larger side.
- Tolerance for an even trade is 5%, so the verdict is: Side A gives up more value.
Its 4 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the fantasy trade calculator calculates
Compares the two sides of a fantasy trade from the player and draft-pick values on your league's chart, applies a starter-slot discount to the extra pieces in a consolidation trade, and reports the gap and a fairness reading against an explicit tolerance band.
How to use this fantasy trade calculator
Enter Values of what side A gives up, Values of what side B gives up, Sport and League format. Verdict updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Verdict, Side favoured and Side A total value.
The method follows FantasyCalc - trade values derived from completed trades in real leagues; the source of the per-player numbers this engine consumes, KeepTradeCut - crowdsourced dynasty and redraft player value charts, Draft Sharks dynasty trade value chart and FanGraphs Library, "Replacement Level" - why assets beyond the startable roster slots are worth less than their headline value.
Two pieces for one, raw totals example
With Values of what side A gives up: 7500,3200, Values of what side B gives up: 9800, the calculator returns Side A total value: 10700, Side B total value: 9800, Side A minus side B: 900. This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects Verdict, Side favoured and Side A total value. The inputs you can vary are Values of what side A gives up, Values of what side B gives up, Sport, League format, Where the values came from and Startable roster slots this trade affects.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
What information do I need for the fantasy trade calculator?
You need Values of what side A gives up, Values of what side B gives up, Sport, League format, Where the values came from, Startable roster slots this trade affects, Discount on assets beyond those slots and Tolerance for calling a trade even. The page opens with default figures that give verdict of Side A gives up more value, so you can see the scale before entering your own.
What does this fantasy trade calculator show?
It shows Verdict, Side favoured, Side A total value, Side B total value, Side A after the starter-slot adjustment, Side B after the starter-slot adjustment, Side A minus side B and Size of the gap, with the working and any warnings for your entries.
Can I check how the fantasy trade calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.