Calculate how inflation erodes purchasing power over time with year-by-year breakdown.
US long-term average ~3%
Enter an amount, year range, and inflation rate to see how purchasing power changes.
Calculate how much you need to save for retirement and if you are on track.
Calculate compound interest and investment growth over time.
Calculate your take-home pay after income tax and deductions.
Calculate your monthly and annual living expenses with detailed budget breakdown.
Calculate profit margins, markup, and pricing for your business.
Calculate selling price markup from cost and desired profit.
Calculate sales commissions and earnings from deals.

Founder & Developer of FreeKit
I personally designed and built every tool on this website — including the one you just used. If these tools have been helpful, I can build custom tools, automation workflows, websites, and SEO solutions tailored to your business.
Remote: Available Now
United States & European company
USD $25/hour or USD $1,500/month
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With work visa & travel support