Fair Split Calculator
Calculate a fair percentage split based on what each person actually contributes — across time, money, skills, risk, and management.
How many people are splitting?
Add between 2 and 5 parties. You'll rate each person's contributions next.
How the fair split calculator works
Add your parties
Enter 2-5 people who are splitting contributions, equity, or ownership.
Rate contributions
Score each person 0-10 across 5 dimensions and adjust importance weights.
See your split
Get a visual percentage breakdown with a donut chart and category-by-category analysis.
Frequently asked questions
How does the fair split calculator work?+
You rate each person across 5 contribution dimensions, adjust importance weights, and get a weighted percentage split.
What dimensions are used?+
Time & Effort, Capital & Money, Skills & Expertise, Risk & Sacrifice, and Management & Connections.
Is this legally binding?+
No. This is a data-driven starting point for discussion, not legal advice.
Can I use this for startup equity splits?+
Yes — it's commonly used for co-founder splits, business partnerships, and any multi-party contribution division.
Can't agree on the split?
If the numbers don't settle it, our free AI mediator helps both sides present their case and negotiate a fair outcome.
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