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Grade average calculator
Calculate an arithmetic grade average and see the sum and number of grades.
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The complete catalogue of published calculators and generators.
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Education
Calculator
Attendance calculator
Check attendance, required presences and how many remaining classes you can miss.
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Polish high-school admission points calculator
Calculate standard Polish secondary-school points from exams, four grades and achievements.
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Weighted grade average calculator
Calculate a grade average where each entered value can have a different weight.
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Eighth-grade points — exam only
Convert Polish eighth-grade exam percentages into secondary-school admission points.
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Matura 2026 — pass-requirement checker
Check written and oral thresholds and your declared fulfilment of the remaining requirements.
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University points — manual weighted formula
Calculate a manual weighted sum or average of scores, without university presets.
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Employment
Calculator
Polish working time calculator
Monthly nominal hours, annual table and Polish holiday calendar.
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Employment seniority calculator
List documented service periods and count days without overlap.
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Polish annual leave calculator
Standard leave, first year and working-fraction or employer changes.
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Polish unused-leave compensation calculator
Gross compensation with the automatic 2026 coefficient and pay-basis components.
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Polish overtime pay calculator
Separate ordinary-pay and premium bases, plus time-off alternatives.
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Polish employment notice-period calculator
Final employment date, service thresholds and probation contracts.
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Polish employer sick pay calculator
Gross employer sick pay, the 33/14-day limit and transition to sickness allowance.
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Polish sickness allowance calculator
Gross employee sickness allowance and remaining benefit-period limit.
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Polish domestic travel allowance calculator
PLN 45 allowance, partial days, meals, hotels and advance settlement.
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Polish foreign travel allowance calculator
Country-currency allowances, meals, hotels, transport and advance balance.
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Polish umowa-zlecenie pay calculator
Mandate-contract net pay: ZUS, PIT, student status and confirmed payer costs.
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Polish umowa o dzieło pay calculator
Specific-work net pay: 20% tax costs or qualifying 50% costs and a PIT breakdown.
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Finance and tax
Calculator
Polish statutory interest calculator
Statutory capital interest with automatic historical rate periods.
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Polish tax-arrears interest calculator
Tax interest with dated rate periods, PLN 8.70 threshold and rounding.
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Polish late-payment interest calculator
Civil or commercial late interest split into dated rate periods.
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Polish VAT calculator
Net/gross conversion, quantities, mixed VAT rates and separate exemption.
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Polish gross-to-net salary calculator
Employment contract 2026: PIT threshold, ZUS cap, PIT-2, PPK and full youth relief.
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Polish mortgage overpayment calculator
Shorter term or lower payments, recurring overpayments and a schedule.
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Mortgage repayment calculator
Mortgage payments, down payment, fees, full repayment schedule and rate scenario.
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Loan repayment calculator
Cash-loan payments, interest and entered fee costs with a full repayment schedule.
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Polish net-to-gross salary calculator
Find gross employment pay yielding at least your target net salary in Poland in 2026.
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Polish annual PIT tax-scale calculator
Estimate individual 2026 Polish scale PIT and compare annual tax with withheld advances.
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Polish retirement calculator — ZUS balance model
Estimate monthly gross pension from indexed ZUS balances and an appropriate GUS divisor.
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Borrowing capacity — household budget estimator
Estimate borrowing from your payment budget and a user-defined interest-rate stress scenario.
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Business and leasing
Calculator
Leasing calculator
Net or gross instalment, VAT, initial payment, buyout and total fees.
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B2B calculator — annual comparison
Annual comparison of three PIT regimes using entered costs and contributions.
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Savings and investing
Calculator
TOS, COI and EDO bond calculator
Model after-tax cash flows for September 2026 TOS, COI and EDO issues.
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Polish bank deposit calculator
Calculate a dated deposit with tax at each interest payment.
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Savings growth calculator
Plan contributions, check a goal and view tax and inflation scenarios.
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Return on investment calculator
Calculate ROI after costs and optionally annualise a single holding period.
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Health and fitness
Calculator
Running pace calculator
Solve for pace, time or distance and inspect cumulative race splits.
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Sleep planner — bedtime and wake time
Plan bedtime or wake time with sleep-latency and awakening assumptions.
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Calorie needs and intake comparison
Compare entered food energy with estimated maintenance, without prescribing a diet.
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TDEE calculator — activity scenarios
Compare how activity assumptions change an illustrative TDEE estimate.
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BMR calculator — resting energy estimate
Estimate resting energy separately from full-day food requirements.
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Pregnancy and family
Calculator
Pregnancy week calculator
Calculate completed weeks from LMP or dating established in prenatal care.
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Estimated due date calculator
Estimate a due date from a regular cycle, known fertilisation or IVF transfer.
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Fertile-window calculator — calendar scenario
Explore calendar variability without identifying contraceptive “safe days”.
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Time and date
Calculator
Date difference and Polish working days
Compare dates or count weekdays excluding Polish public holidays.
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Hours and time calculator
Add time intervals and convert decimal hours.
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Age calculator
Calculate complete age in years, months and days on a selected date.
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Automotive
Calculator
Tyre size comparison calculator
Compare nominal tyre dimensions, without assessing rim fitment.
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Fuel consumption calculator
Calculate average fuel use in litres per 100 kilometres.
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Fuel and trip cost calculator
Calculate fuel, tolls and parking with an equal per-person share.
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Mathematics
Calculator
Percentage calculator
Calculate a percentage of a number, percentage ratio or percentage change.
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Polish documents and numbers
Generator
Polish tax microaccount generator
Microaccount with PESEL date and checksum checks; verify with the Ministry.
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Polish NIP validator
Check NIP structure and checksum locally, without verifying issuance or ownership.
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Polish PESEL validator
Check PESEL structure and checksum locally, without verifying issuance or ownership.
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Test NIP generator
Create 1–20 test NIP strings with passing or deliberately failing checksums.
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Test PESEL generator
Create 1–20 test PESEL strings with passing or deliberately failing checksums.
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Text and fonts
Generator
Unicode text style generator
Compare bold, monospace and sans-serif Unicode symbols.
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Text decorations preserving Polish letters
Decorate text without replacing Polish letters with mathematical symbols.
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