Updated for 2026

Free onlinecalculators & converters.

Salary, taxes, finance, health, math, and everyday tools — fast, privacy-friendly, and free. Built with localized calculators for Poland, Germany, and the United States.

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Popular tools & quick answers

What is VerCalc?

VerCalc is a free hub of calculators and converters. We focus on clear inputs, transparent formulas, and practical results you can use right away. Many tools work locally in your browser (privacy-friendly), and we maintain dedicated pages for regions like Poland, Germany, and the United States.

FAQ

Are VerCalc calculators free to use?+
Yes. VerCalc provides free calculators and converters across finance, taxes, health, math, time and everyday topics.
Do I need an account to use the tools?+
No. Tools are available without registration.
Is my data stored?+
Many tools run calculations directly in your browser. We aim to minimize data collection and avoid asking for unnecessary information.
How accurate are the results?+
We use standard formulas and well-known calculation methods. Outputs are often estimates (especially for health and planning tools) and may be rounded. For important decisions, verify assumptions and consult official sources or a professional.
Do you show the formulas or explain the calculation?+
Many calculators include explanations and methodology sections on their pages, so you can understand inputs, assumptions, and how the result is computed.
Why can results differ from my bank/payroll app?+
Differences usually come from rounding, withholding settings, location-specific rules, timing (monthly vs biweekly), and assumptions (e.g., fees, taxes, insurance). Always match inputs to your real situation to compare like-for-like.
Do you support localized calculators for specific countries?+
Yes. We publish dedicated tools and hubs for regions like Poland, Germany, and the United States where rules and terminology differ.
Can I use VerCalc on mobile?+
Yes. The calculators are designed to work on phones, tablets, and desktops.
What should I do if I’m not sure which inputs to use?+
Start with the default values, then adjust one parameter at a time. If a term is unclear, check the tool’s help text/notes—many pages include guidance and typical ranges.
Which tool should I start with?+
Pick the category that matches your question: salary and taxes for paycheck planning, mortgages and loans for borrowing decisions, BMI/TDEE for health estimates, and converters for quick unit/time conversions.

What is VerCalc?

A hub of practical calculators

VerCalc is a free collection of online calculators and converters across finance, taxes, health, math, and everyday topics. We focus on clear inputs, transparent formulas, and results you can understand. Whether you’re estimating salary after tax, checking a BMI, or doing a unit conversion, the goal is the same: fast answers, with minimal friction.

Privacy-first by design

We aim to keep things privacy-friendly. In many tools, calculations run directly in your browser and we don’t require you to create an account. Use the calculators without sharing unnecessary personal data.

What you’ll find here

Financial Precision

Salary, taxes, and finance calculators with clear parameters and explanations — including localized tools for PL/DE/US where applicable.

Health Metrics

Practical health calculators (like BMI and calorie estimates) based on widely used formulas and presented in a user-friendly way.

Scientific Utilities

Converters and everyday utilities (units, time/date, percentages) designed to be quick and easy to use.

Diverse Calculation Ecosystem

VerCalc is more than just a finance tool. We provide a comprehensive suite of utilities designed for every aspect of your life:

  • Finance & Tax: Salary calculators, investment returns, and mortgage estimators.
  • Health & Fitness: BMI, BMR, TDEE, and macro nutrient planning.
  • Math & Education: Percentage, geometry, and algebra tools for students and professionals.
  • Everyday Utilities: Time zones, unit converters, and date calculations.

Global Reach, Local Precision

🇪🇺 Europe (DACH & CEE)

Specialized financial tools for Germany (DE) and Poland (PL), including local tax laws and social security specifics.

🇺🇸 United States & Global

Broad support for US Federal Tax systems, universal unit conversions (Imperial/Metric), and global time zone management.