Calculate how many months your cash balance will last given your monthly burn rate. Essential for startup financial planning. Everything runs locally in your browser — nothing is uploaded.
Calculates gross burn, net burn, and runway (in months) from monthly revenue, operating expenses, and current cash balance. Everything runs locally in your browser — nothing is uploaded.
Calculate customer churn rate by dividing customers lost by total customers. Monitor retention health for your subscription business. Everything runs locally in your browser — nothing is uploaded.
Calculate monthly car loan payments, total interest, and total cost. Enter loan amount, rate, and term for a complete auto financing picture. Everything runs locally in your browser — nothing is uploaded.
Calculate heart rate training zones by age. Find your target heart rate ranges for different exercise intensity levels. Everything runs locally in your browser — nothing is uploaded.
Conversion Rate Calculator divides conversions by total visitors and displays the rate as a percentage with configurable decimal precision. Everything runs locally in your browser — nothing is uploaded.
Runway Calculator lets you calculate how many months your cash balance will last given your monthly burn rate. Essential for startup financial planning. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Calculate how many months your cash balance will last given your monthly burn rate. Essential for startup financial planning. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Enter numeric values in the input fields — amounts, rates, or percentages.
Yes. After the initial page load, Runway Calculator runs entirely on your device with no internet connection needed. All processing is done locally.
All calculators use standard financial formulas and are accurate to two decimal places unless otherwise specified.
Some calculators include local storage for recent calculations. History stays on your device and is not shared.
No. These tools provide mathematical calculations for educational and planning purposes. Consult a financial advisor for professional advice.
The currency converter supports 160+ currencies with live exchange rates via a public API, plus an offline fallback matrix.
Basic calculators work offline. The currency converter requires an internet connection for live rates but includes offline fallback data.
Currency Converter
Converts between 160+ world currencies using real-time exchange rates sourced from central banks and financial data providers. Uses cloud-based processing.
EMI Calculator
Splits a loan principal into equal monthly installments using the standard reducing-balance formula with configurable annual interest and tenure. Everything runs locally in your browser — nothing is uploaded.
SIP Calculator
Projects the future value of recurring mutual-fund investments using compounded monthly returns based on historical or assumed growth rates. Everything runs locally in your browser — nothing is uploaded.
GST Calculator
Computes GST-inclusive and GST-exclusive amounts for Indian tax slabs (5%, 12%, 18%, 28%) with automatic HSN/SAC code hints.
Salary Calculator
Calculate net salary after taxes Everything runs locally in your browser — nothing is uploaded.
Invoice Generator
Produces downloadable PDF or HTML invoices with customizable line items, tax rates, discounts, and business logo placement. Everything runs locally in your browser — nothing is uploaded.