Calculators for couples
Model home down payments, state marriage laws, attorney fees, and unvested equity together.
Home Down-Payment Calculator
Compare how 3 prenup clauses divide home equity when one partner contributes more of the down payment.
Open calculatorState Default Calculator
See how Community Property or Equitable Distribution laws automatically divide your savings, equity, and income.
Open calculatorPrenup Cost Calculator
Estimate what two independent attorneys cost in your city and how aligning first cuts billable hours.
Open calculatorUnvested RSU Calculator
Compare how pre-wedding grants and refreshers divide under grant-date vs. state time-rule formulas.
Open calculatorCommon questions
Do I need to create an account to use these calculators?
No. All four calculators run directly in your browser with zero login or email gate. You can adjust any slider and copy a shareable scenario link for your partner in one click.
Are the numbers in a shared scenario link private?
Yes. When you click "Share Scenario with Partner," your slider numbers are encoded into the URL link itself rather than stored on a public profile.
How do these calculators connect to our actual prenup?
Once you see which rule feels fairest (such as getting a down payment credited back first or keeping pre-wedding RSUs separate by grant date), Vespera lets both partners lock in those choices and export a clean brief for your attorneys.
Agree on your prenup before hiring lawyers.
Answer guided prompts privately, see where you match, and hand your attorneys an agreed brief.
Vespera is a pre-lawyer financial alignment workspace, not a law firm, and does not provide legal advice or draft binding contracts.