Plain Figures.

Plain Figures is a financial calculator hub built for people who want to check the maths before they commit to a decision. Not the opinion. Not the product recommendation. The maths.

We build accurate, formula-first tools for mortgage repayments, savings growth, compound interest, salary take-home, retirement projections, rent vs buy comparisons, and more. Each calculator is accompanied by a plain-language guide explaining the underlying calculation — so you understand the result, not just the number.

Our audience is ordinary adults making real financial decisions: first-time buyers running affordability scenarios, families modelling retirement, freelancers checking their day rate, professionals stress-testing a business case. We don't assume financial literacy. We don't assume you have an adviser.

We do not provide financial, investment, insurance, or professional advice. We do not sell products. We do not take referral fees. We do not have an agenda beyond accuracy. All results are indicative — they are a starting point for your thinking, not a substitute for professional guidance where that is appropriate.

Plain Figures is operated from Germany and complies with applicable EU/GDPR data protection standards. We collect no personal data from calculator use.