Family Finance Calculators
Free, private calculators for every stage of marriage and separation. 100 tools covering divorce, child support, property division, wedding planning, and more.
All calculations run locally — nothing leaves your browser
Divorce & Alimony
Alimony, spousal support, and divorce settlement calculators
Alimony Calculator Estimate spousal support payments California Alimony Calculator CA temporary & long-term support New York Maintenance Calculator NY spousal maintenance formula Texas Spousal Maintenance TX support eligibility & amount Florida Alimony Calculator FL post-2023 reform calculations Illinois Alimony Calculator IL 33.3%/25% formula Alimony Duration Calculator How long will payments last? Alimony Tax Calculator Tax impact of alimony payments Alimony Modification Calculator Impact of life changes on alimony Lump Sum vs Monthly Alimony Compare payment options
Child Support
Child support calculations for all 50 states and custody arrangements
Child Support Calculator National child support estimator California Child Support CA guideline formula New York Child Support NY percentage formula Texas Child Support TX net resources model Florida Child Support FL income shares model Shared Custody Calculator 50/50 and custom splits Child Support Modification Recalculate after changes Child Support Arrears Arrears with interest Self-Employment Support Self-employed income rules Child Support Duration When does support end?
Property Division
Divide assets, debts, and property in divorce
Home Equity Buyout Calculate your buyout amount Property Division Calculator Split marital assets fairly 401(k) Divorce Split Retirement account division Pension Division Calculator Coverture fraction method Marital Debt Division Divide debts equitably Divorce Settlement Calculator Compare settlement options Mortgage Refinance After Divorce Can you qualify solo? Business Valuation in Divorce Value a marital business Post-Divorce Net Worth Your wealth after settlement Post-Divorce Budget Plan your new financial life
Divorce Process & Costs
Understand what divorce will cost and how long it takes
Divorce Cost Calculator Total cost by type of divorce Attorney Fee Calculator Estimate legal fees Mediation Cost Calculator Mediation vs litigation savings Filing Fee Calculator Court fees by state Divorce Timeline How long will it take? Can I Afford Divorce? Financial readiness check Divorce vs Separation Compare financial outcomes Standard of Living Before vs after divorce Name Change Costs Cost to change your name Settlement Comparison Compare two proposals
Children & Family
Calculate the real costs of raising children
Cost of Raising a Child Birth to 18 total cost Daycare Cost Calculator Childcare costs by type & state Baby Cost Calculator First year expenses Child Affordability Can you afford a child? College Savings Calculator 529 plan projections Parenting Time Calculator Custody schedule percentages Nanny vs Daycare Compare childcare options Child Tax Credit CTC by filing status Dependent Care FSA Maximize tax savings Fertility Treatment Cost IVF, IUI, and more
Marriage & Couple Finances
Financial tools for couples — budgets, taxes, and fair sharing
Marriage Tax Calculator Marriage penalty or bonus? Filing Jointly vs Separately Which saves more? Fair Share Calculator Income-proportional splitting Joint Budget Calculator Plan finances together Combined Net Worth Joint wealth tracker Household Labor Value Value of unpaid work Stay-at-Home Parent Value Worth of home parenting How Much House (Couples) Home affordability for two Emergency Fund (Couples) How much do you need? Debt Payoff (Couples) Snowball vs avalanche
Wedding & Prenup
Plan your wedding budget and protect your assets
Wedding Budget Calculator Allocate your budget wisely Cost Per Guest Guest list cost impact Wedding Cost by State Location cost comparison Destination Wedding Plan a wedding abroad Wedding Savings Monthly savings goal Engagement Ring Budget for the ring Honeymoon Budget Plan your getaway Prenup Cost Calculator Attorney fees for prenup Prenup vs No Prenup Financial outcome comparison Vendor Tip Calculator Who to tip and how much
Retirement & Tax
Social Security spousal benefits, estate planning, and tax strategies
SS Spousal Benefits Maximize spousal SS SS Divorced Spouse Benefits from ex-spouse Couples Retirement Joint retirement planning Life Insurance Needs Coverage for your family Health Insurance (Divorce) COBRA & marketplace options Estate Tax (Couples) Federal estate tax planning Capital Gains (Home Sale) $500K vs $250K exclusion Head of Household Filing status after divorce Alimony Tax Impact Pre/post-2019 tax rules Gift Tax (Couples) Annual exclusion & splitting
UK Calculators
Family law calculators for England & Wales
Canada Calculators
Canadian family law support calculators
Australia Calculators
Australian family law and property calculators
Specialized Calculators
Military divorce, gray divorce, high-net-worth, and more
Military Divorce Pension, BAH, USFSPA Gray Divorce (50+) Late-life divorce planning High Net Worth Divorce Complex asset division Blended Family Budget Stepfamily finances Cohabitation Calculator Living together savings Divorce Risk Calculator Statistical risk factors Common Law Marriage Rights by state Relocation Impact Moving & support changes Divorce Readiness Quiz Are you financially ready? Dating After Divorce Budget for starting over
Coverage
100+
Free Calculators
50
US States
4
Countries
0
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Local calculations
Every calculation runs in your browser. Your financial data never leaves your device.
Not legal advice
Our tools provide estimates based on published guidelines. Always consult a qualified attorney.