Codaphic Toolkit
Fast, private calculators that run entirely in your browser — numbers to words, percentages, loan payments, and tips.
Words, multi-currency spelling, or check writing — with letter-case controls.
Find X% of Y, reverse percentages, percent change, and markups or discounts.
Monthly EMI, total interest, and repayment cost from principal, rate, and term.
Add gratuity, split the bill, and see tip, total, and per-person amounts.