SILDIL - Free Online Calculators for Finance, Math, Health & More

Free rent affordability calculator. Work out how much rent you can afford from your income, debts, expenses, and savings goals — or check a specific apartment, find the income needed for a target rent, split rent with roommates, and plan move-in costs.

Financial Calculators

US Salary & Paycheck Calculator

Calculate the circumference of a circle from its radius or diameter. Find radius and diameter from circumference, use circle formulas, and see step-by-step calculations.

Math Calculators

SaaS Burn Rate & Runway Forecaster

Free 16:9 aspect ratio calculator. Find width or height for widescreen HD/4K video, monitors, and YouTube. Supports 1920x1080, 1280x720, and any custom dimension. Includes pixel count and diagonal.

Calculators

$Free Julian Date Converter. Calculate Julian Date (JD), Julian Day Number (JDN) and Modified Julian Date (MJD) from any Gregorian or Julian calendar date — or convert a Julian date back to a real calendar date, with fractional time, day-of-year, and YYYYDDD codes.$