18 free online finance utilities — all processed locally in your browser.
Converts between 160+ world currencies using real-time exchange rates sourced from central banks and financial data providers.
Computes percentage values, percentage increases and decreases, and what-percent-of-what relationships with precise decimal arithmetic.
Splits a loan principal into equal monthly installments using the standard reducing-balance formula with configurable annual interest and tenure.
Projects the future value of recurring mutual-fund investments using compounded monthly returns based on historical or assumed growth rates.
Computes GST-inclusive and GST-exclusive amounts for Indian tax slabs (5%, 12%, 18%, 28%) with automatic HSN/SAC code hints.
Produces downloadable PDF or HTML invoices with customizable line items, tax rates, discounts, and business logo placement.
Computes gross profit, net profit, and margin percentages from revenue and cost inputs. Small-business owners use it to price products.
Calculates gross margin percentage, markup percentage, cost, and selling price from any two known variables using standard retail formulas.
Measures return on investment by comparing net gain or loss against the original cost, expressed as both a percentage and a dollar amount.
Computes VAT-inclusive and VAT-exclusive amounts for EU member-state rates (standard and reduced) with country-specific rules for digital services.
Creates printer-friendly receipt pages with itemized purchases, payment method, date, and merchant details in a compact single-page layout.
Validates the structure, length, and check digits of IBANs from 70+ countries using the official ISO 13616 modulus-97 algorithm.
Determines the exact unit volume or revenue required to cover fixed and variable costs, with a built-in sensitivity slider for price changes.
Projects customer lifetime value using average order value, purchase frequency, gross margin, and estimated customer lifespan in months.
Divides total sales-and-marketing spend by the number of new customers acquired in the same period to produce a blended acquisition cost. Startup.
Calculates gross burn, net burn, and runway (in months) from monthly revenue, operating expenses, and current cash balance.
Models subscription revenue across tiers (free, monthly, annual) with inputs for conversion rate, churn, customer count, and average revenue.
Drop 100 invoice PDFs or images, auto-detect date, vendor, amount, and tax, then export a clean CSV ready for tax filing. Replaces expensive accounting OCR per-document fees.