Calculators for law, finance, work and real estate
Use free online calculators for law, finance, employment and real estate.
Quickly calculate alimony, interest, salary, loan costs, transfer tax and other values you need before making a decision.
Calculator categories
Law
Calculators related to family law, inheritance, contracts and claims.
Finance
Tools for calculating loans, leasing, taxes, contributions and interest.
Work
Salary, leave, employee cost and termination calculators.
Real estate
Calculators for mortgages, rental and buying or selling real estate.
Browse by topic
All calculators
Down payment calculator
Down payment, loan amount and start budget
Net salary calculator — gross to net
Gross↔net, PPK, under‑26 — employment
Rent vs mortgage calculator
Rent vs loan — compare costs
Contract notice period calculator
Notice period — estimated end date
Reserved portion (zachowek) calculator
Estimated reserved portion claim
Deposit and withdrawal fee calculator
Deposit and withdrawal fee — contractual financial effects
Salary and bank account attachment calculator — how much can be seized
Salary and account attachment — limits and protected amount
Creditworthiness calculator
Creditworthiness and estimated financing amount
Severance pay calculator
Severance on dismissal — Labour Code
Related guides by topic
Read guides related to calculators in the areas of law, finance, employment and real estate.
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Frequently asked questions
Answers to the most common questions about our legal and financial calculators.
Over 100 free calculators across 4 categories: law (alimony, reserved share, contractual penalties), finance (loans, taxes, lump-sum), work (salary, B2B, leave) and real estate (mortgage, PCC tax, deposit). Results are indicative and do not replace legal or financial advice.
Yes — all calculators are completely free and require no registration. You can use them without any limits.
Use the search bar at the top of the page, or browse one of the 4 categories: Law, Finance, Work, Real Estate. Each category is divided into topics — you can also browse calculators by topic.
No — results are indicative only and are intended for preliminary assessment. For legal, tax or financial matters, always consult a lawyer, tax advisor or notary.
Regularly — we update calculators with every change in regulations (including ZUS rates, tax thresholds, minimum wage). If you notice an outdated result, let us know via the contact form.
On prawopro.pl you can find a directory of law firms and accounting offices. Search by location and specialisation, then send an enquiry directly through the platform.