Utility Calculators

Utility calculators

Quick helpers for percentages, compounding, inflation, and static currency conversions.

Utility calculators offer quick, privacy-first helpers for common finance and conversion tasks.

Percentage calculator

Solve for percent of, increase/decrease, and reverse percentages.

Compound interest

Project growth with a yearly breakdown table.

Inflation adjuster

Adjust past amounts to today with a simple annual rate.

Currency converter

Static-rate converter with clear limitations; no live FX calls.

Split Bill

Add participants and amounts to split expenses equally and see who owes/gets back.