Negotiation
Negotiation Range (ZOPA) Calculator
Map the deal space before you walk in: where agreement is possible, and where your opening number should sit.
Inputs
- Your walk-away (minimum)
- Your target
- Their estimated maximum
How to use this calculator
- Enter your walk-away point and your target.
- Add your best estimate of the other side's maximum.
- The overlap is the zone of possible agreement. If there's no overlap, the deal doesn't exist at these numbers.
What each term means
- ZOPA
- Zone of possible agreement: the overlap where both sides can say yes.
- Walk-away (reservation) point
- The worst deal you'd still accept before leaving.
- BATNA
- Your best alternative to a negotiated agreement, and your leverage if you walk.
Educational disclaimer: Outputs are simplified educational estimates built from the numbers you enter — they are not financial, legal, tax, or investment advice, and real decisions deserve verified figures and qualified professionals.