ToolMatrix: The Universal Resource Hub for Free Calculators, Converters, and Professional Tools

Estimate your monthly payment, total interest, and loan amortization schedule for home loans and auto loans.

Determine your Financial Independence Number and retirement date planner based on the 4% Rule and your current savings rate.

Calculate SEO ROI and general business profitability by factoring conversion rates and average order value.

Quickly solve common problems like percentage increase, discount percentage, and what is X% of Y for shopping and finance.

Convert your CGPA to percentage (e.g., 9.5 scale) and calculate Cumulative GPA for university and job applications worldwide.

Use the accurate Mifflin-St Jeor equation to calculate your TDEE (Total Daily Energy Expenditure) and calories for weight loss.

Determine your Body Mass Index and assess your healthy weight range for adults, with important notes on BMI formula limitations.

Calculate your estimated delivery date (EDD) using your last menstrual period (LMP) and track key pregnancy milestones.

Quickly identify your economic nexus obligations across all US states to ensure e-commerce tax compliance and mitigate risk.

Convert highly specialized units in Thermal Conductivity and Fluid Dynamics, providing high-precision unit conversion for professionals.

Create free static QR codes instantly for vCard, WiFi access, and URLs, with options for custom colors and high print quality.

Access optimized prompts for SEO content strategy, keyword clustering, and generating structured JSON-LD schema.

Convert images to PNG for transparent backgrounds, Webp for website speed, or SVG for unlimited scaling in high quality.