Legal cluster
Family Law, Courts & Legal Fees Calculators
Calculate child support, alimony, and divorce costs, plus court filing fees, eviction timelines, traffic penalties, and trademark, patent, and copyright registration costs.
Top calculators
A short starting set for the most common family law, courts & legal fees calculators workflows.
Eviction Cost Estimator - Add Legal Fees, Lost Rent, and Turnover Costs
Estimate an eviction's combined filing, service, attorney, lost-rent, property-damage, lockout, and cleanup costs.
Speeding Ticket Fine Estimator - Base Fine, Per-MPH, and Fees
Estimate a speeding ticket fine from the posted speed, your speed, a base fine, a per-mph penalty, and court fees, with a worked example and an optional surcharge.
Lease Break Penalty Estimator - Estimate Early Termination Costs
Estimate a lease break penalty from your monthly rent, penalty months, and added fees, then compare it with the rent you would still owe.
Security Deposit Interest Calculator for Rental Deposits
Work out the interest owed on a rental security deposit from the dates held, with simple or compound accrual and a choice of day-count basis.
Bail Bond Premium Calculator | Estimate a Bondsman’s Fee
Calculate an estimated bail bond premium from a court-set bail amount and a quoted bondsman fee rate. Understand what the premium covers, what it excludes, and why state rules matter.
Copyright Registration Fee Calculator - Estimate Filing Total
Calculate an estimated copyright registration filing total from the application fee, number of works, expedited handling, and mailing or deposit costs.
Attorney Fee Split Calculator - Net Settlement After Fees
Estimate the client's net settlement after contingency attorney fees, case costs, and liens, comparing gross versus net-of-costs fee bases.
Child Support Calculator | Income Shares and Custody Estimate
Estimate monthly child support with the income shares model: combined income, a guideline percentage, each parent's pro rata share, and a parenting-time offset.
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Browse 12 calculators matched to this topic, or return to the Legal category.
Attorney Fee Split Calculator - Net Settlement After Fees
Estimate the client's net settlement after contingency attorney fees, case costs, and liens, comparing gross versus net-of-costs fee bases.
Bail Bond Premium Calculator | Estimate a Bondsman’s Fee
Calculate an estimated bail bond premium from a court-set bail amount and a quoted bondsman fee rate. Understand what the premium covers, what it excludes, and why state rules matter.
Child Support Calculator | Income Shares and Custody Estimate
Estimate monthly child support with the income shares model: combined income, a guideline percentage, each parent's pro rata share, and a parenting-time offset.
Contract Delay Penalty Calculator - Estimate Daily Liquidated Damages
Estimate liquidated damages for a late contract by multiplying chargeable days by the daily penalty rate. Use this calculator to price schedule slips and compare extension scenarios.
Copyright Registration Fee Calculator - Estimate Filing Total
Calculate an estimated copyright registration filing total from the application fee, number of works, expedited handling, and mailing or deposit costs.
Eviction Cost Estimator - Add Legal Fees, Lost Rent, and Turnover Costs
Estimate an eviction's combined filing, service, attorney, lost-rent, property-damage, lockout, and cleanup costs.
Judgment Interest Calculator - Estimate Court-Ordered Accruals
Estimate post-judgment interest with simple or annually compounded accrual. Enter principal, rate, and dates to get per-diem interest and the total payoff.
Lease Break Penalty Estimator - Estimate Early Termination Costs
Estimate a lease break penalty from your monthly rent, penalty months, and added fees, then compare it with the rent you would still owe.
Notarization Fee Calculator - Estimate Document Costs
Calculate total notary fees based on number of signatures, travel charges, and extra certificates.
Security Deposit Interest Calculator for Rental Deposits
Work out the interest owed on a rental security deposit from the dates held, with simple or compound accrual and a choice of day-count basis.
Speeding Ticket Fine Estimator - Base Fine, Per-MPH, and Fees
Estimate a speeding ticket fine from the posted speed, your speed, a base fine, a per-mph penalty, and court fees, with a worked example and an optional surcharge.
Statute of Limitations Calculator | Rule 6(a) Filing Deadline
Compute a civil filing deadline from the accrual date using calendar-anniversary math, FRCP 6(a) weekend and federal-holiday rollover, and cited limitation periods.