Calculators & Self-Checks
Work out for yourself the things to check first in your case. Results are for reference only; for an accurate assessment, talk to a lawyer.
Criminal
Prosecution Request Estimator
Choose a crime and the circumstances to see the likely handling step and the sentence or fine the prosecutor may request.
Sentence Estimator (Sentencing Guidelines)
Choose the crime, type and sentencing factors to see the recommended sentencing range and whether a suspended sentence is recommended under the 2026 Sentencing Guidelines.
Drunk Driving Penalty Checker
Statutory penalties, license measures and disqualification periods by blood alcohol level, prior record and accident.
Police Summons Checklist
What to prepare before you go, on the day of questioning and afterwards, step by step for your situation.
Family & Inheritance
Child Support Calculator
Standard child support and each parent's share under the 2021 Child Support Guidelines.
Inheritance Share Calculator
Each heir's statutory share based on the order of heirs and the rule that a spouse receives 1.5 times a share.
Forced Heirship (Reserved Share) Calculator
The base estate for the reserved share and each heir's reserved share amount, reflecting the 2024 Constitutional Court decision.
Civil & Deadlines
Late Payment Interest Calculator
Interest by period and the total, at the statutory rate, the Litigation Promotion Act rate or an agreed rate.
Court Costs Calculator
Stamp fees and service fees by the amount in dispute, type of case and level of court.
Legal Deadline Calculator
Deadlines for appeals, immediate appeals, final appeals and more, calculated with public holidays taken into account.
Maximum Interest Rate Check
Whether the interest on a loan exceeds the legal maximum rate (20% a year), and by how much.
© 2026 JISAN LAW. The question structure, the organisation of the criteria, the result wording and the data on this page are works and a database created by JISAN LAW. Copying, distributing or modifying them, reusing them on other websites or services, or collecting them automatically (scraping) without permission is prohibited. Violations may lead to civil and criminal liability under the Korean Copyright Act and the Unfair Competition Prevention and Trade Secret Protection Act.