About Cost-of-Life Calculators
Responsibility, sources and checks
Main-Mietservice operates and maintains CostofX. These tools support planning, not individual financial, tax or energy advice. We do not claim independent professional certification.
- Each calculator explains formulas, units and included costs. Our own assumptions are identified explicitly.
- Reference tests check known results, unit changes, boundary cases and shared inputs. Changes also undergo type checks, production builds and browser checks.
- Consumption and price sources retain their data dates, separately from technical update dates. Your own bills and actual quotes take precedence over examples.
Found an incorrect result? Send the calculator name, region, assumptions and expected calculation. Personal names and confidential amounts are not required. print.design2212@gmail.com
Welcome to Cost-of-Life Calculators, your free resource for making informed financial decisions. We believe that understanding your expenses is the first step toward financial freedom.
Our Mission
Our mission is to provide simple, accurate, and accessible cost calculators that help people understand their everyday expenses. Whether you're planning to buy a car, considering a pet, or just want to track your coffee habit, we're here to help.
Company Information
CostofX is operated by Main-Mietservice, based in Hochheim am Main, Germany.
Company: Main-Mietservice
Location: Hochheim am Main, Hesse, Germany
Contact: print.design2212@gmail.com
Why We Built This
Many financial tools are overly complex, require signups, or track your data without consent. We wanted to create something different: fast, transparent, and genuinely helpful. Calculations run in your browser. Inputs are saved locally on your device. A result link contains the values you choose to share.
Our Commitment
- Free Forever: All calculators are completely free, no hidden fees or premium tiers
- Privacy-First: We only use analytics with your explicit consent via our cookie banner. Calculator inputs stay in local browser storage; shared links disclose them to their recipients. Older query-based links may appear in hosting logs
- Transparent: Open about our data practices and limitations. Read our Privacy Policy for full details
- No Ads: Calculator-focused experience without advertising or distractions
- Regular Updates: Continuously improving calculators based on user feedback and changing market conditions
- Accessible: Works on all devices, no signup required, bilingual (English/German)
Important Disclaimer
Our calculators provide estimates only and do not constitute financial advice. Results are based on general assumptions and average data. Always consult qualified professionals for important financial decisions. See our Terms of Service for full disclaimers.
Get in Touch
Have feedback or suggestions for new calculators? We'd love to hear from you!
Contact: print.design2212@gmail.com