How This Divorce Calculator Works
Dividing what you own together is one of the hardest parts of divorce — and one of the most expensive to figure out through lawyers alone. You don't need an attorney to run the basic math. This calculator does it in three steps:
- Classify. Only marital property — what you built during the marriage — gets divided. Property one spouse owned before the marriage, or received as a gift or inheritance, is usually separate and stays with that person.
- Net it out. Add up marital assets, subtract marital debts. What's left is the net marital estate — the actual pie to be divided.
- Split. In the 9 community-property states the default is 50/50. In the other 41 (equitable distribution) a judge divides it fairly, which often lands near even but can tilt based on income, marriage length, and contributions. Adjust the split to model your situation.
The result updates live as you type. It's a planning number, not a court order — but it's the number you need to walk into negotiations knowing. Confirm the specifics with a family-law attorney who knows your state's rules and your facts.
What Your Divorce Number Actually Measures
Your divorce number is not the sticker price of everything you own. It is the net marital estate: the marital assets that can be divided, minus the marital debts that must be accounted for, with separate property kept outside the split. That distinction matters. A couple may own a $500,000 house, two cars, retirement accounts, and cash, but if there is a mortgage, a car loan, credit-card debt, and one spouse's premarital retirement balance mixed into the picture, the number to divide is much smaller than the gross total.
The asset division calculator mirrors the settlement worksheet many attorneys build at the start of a case. First, each item is classified as marital or separate. Then the marital values are totaled. Then the marital debts are subtracted. Finally, the net estate is multiplied by the selected split percentage. In formula form: marital assets - marital debts = net marital estate, and net marital estate x spouse share = estimated marital share. Separate property is shown in the final total so you can see what each person may leave with, but it is not divided by the split percentage.
State law controls the starting point. Community-property states generally begin from an equal division of the marital estate. Equitable-distribution states ask what division is fair, which may still be equal but can tilt when the facts justify it. Common factors include the length of the marriage, each spouse's earning capacity, nonfinancial contributions such as caregiving, tax consequences, wasteful spending of marital money, custody-related housing needs, and the value of property each spouse already has outside the marriage.
This is why the calculator lets you adjust the split instead of pretending every case is automatically 50/50. A short marriage with clearly traceable premarital assets may produce a different negotiation range than a long marriage where one spouse left the workforce to raise children. A settlement that looks uneven on the asset side may also be balanced by alimony, child support, or one spouse taking on more debt. Use the number as the shared baseline: once both people understand the net estate, the legal and practical trade-offs become much easier to discuss.
The best way to use the result is to test scenarios. Enter the home equity instead of the full home value. Add retirement accounts at their marital portion, not necessarily their full balance. Separate inherited funds from joint savings. Move a debt from marital to separate if it was clearly one spouse's pre-marriage obligation. Then print the summary and compare it with the house buyout, alimony, and child support tools so your settlement conversation starts with organized numbers rather than guesses.
Plain-Language Divorce Finance Guides
How Marital Property Is Divided
Community property vs equitable distribution, explained state by state.
Separate vs Marital Property
What counts as yours alone — and how separate property accidentally becomes shared.
Buying Out the House
How to value the home, calculate the buyout, and handle the refinance.
How Alimony Is Calculated
Why there's no national formula, and the factors that actually drive support.
Dividing Retirement & the QDRO
Splitting a 401(k) or pension without triggering taxes and penalties.
Selling the House in a Divorce
When selling beats a buyout, and the tax exclusion rule most people miss.
Gray Divorce: Dividing Assets After 50
Retirement accounts, Social Security, health insurance — what changes later in life.
Is My Inheritance Safe in a Divorce?
The specific scenarios that put an inheritance at risk, and how to protect it.
Keeping the House
Refinance, assumption, and title transfer — what actually gets your ex off the loan.
Divorce Forms & Filing Basics
The forms every divorce needs, and why petitions get rejected.
Divorce Financial Checklist
The full step-by-step roadmap, with a calculator for every step.
Frequently Asked Questions
Is a divorce calculator accurate?
A divorce calculator gives a solid estimate, not a guaranteed outcome. The math — adding marital assets, subtracting marital debts, and splitting the net — is straightforward. What varies is how a court classifies property and what split a judge considers fair in an equitable-distribution state. Treat the number as a starting point for planning and negotiation, then confirm the specifics with a family-law attorney in your state.
How are assets split in a divorce?
First, property is classified as marital (acquired during the marriage) or separate (owned before, or received by gift or inheritance). Only marital property is divided. The 9 community-property states generally split the marital estate 50/50; the other 41 use equitable distribution, where a judge divides it fairly based on factors like income, marriage length, and each spouse's contributions.
Do we have to split everything 50/50?
Only in community-property states is 50/50 the default. In the 41 equitable-distribution states the split is whatever is fair given the circumstances — it can be 60/40 or another ratio. And in any state, you and your spouse can agree to a different division in a settlement; courts usually approve a fair agreement you reach yourselves.
What is the difference between marital and separate property?
Marital property is generally everything either spouse acquired during the marriage — income, the home, retirement contributions, most purchases — no matter whose name is on the title. Separate property is what one spouse owned before the marriage, plus individual gifts and inheritances. Separate property can become marital if it's mixed with marital money (commingled), a frequent point of dispute. See our separate vs marital property guide.
How is the value of the house split in a divorce?
Start with the home's equity — current market value minus the mortgage and any other liens. That equity is the marital asset to divide. Couples usually either sell and split the proceeds, or one spouse buys out the other's share and refinances the mortgage into their own name. Our House Buyout Calculator models all three options.
What happens to debt in a divorce?
Debt taken on during the marriage is usually marital debt and is divided along with assets, even if only one spouse's name is on the account. This calculator nets marital debts against marital assets so each share reflects what you actually walk away with. Important: a divorce decree doesn't bind a lender — if both names are on a loan, the creditor can pursue either of you until it's refinanced or paid off.
How are retirement accounts and pensions divided?
The portion of a 401(k), pension, or IRA earned during the marriage is typically marital property. Splitting a workplace plan usually needs a court order called a QDRO (Qualified Domestic Relations Order) so the transfer avoids early-withdrawal taxes and penalties. Enter the marital portion's value as an asset, and read our QDRO guide.
What is a financial order or marital settlement agreement?
A marital settlement agreement is the written contract that spells out how you and your spouse divide property, debts, support, and (if relevant) parenting — the financial terms of your divorce. Once a judge approves it, it becomes part of the divorce decree and is enforceable. This calculator helps you walk into that negotiation with realistic numbers.
Is my information stored anywhere?
No. Every calculation runs entirely in your browser. Nothing you type is sent to a server, saved, or shared — close the tab and it's gone.
Is Divorce Number free to use?
Yes. Every calculator here is free, needs no signup or email, and has no paywall. The site is supported by advertising.