toolooo · Toolbox
Free Tools.
Actually Useful.
Calculators, web tools, and utilities crafted to save time, solve problems, and make your work easier. Always free.
5 MVP Calculators
These launch first. Fully functional, carefully crafted for real use cases.
Profit Margin Calculator
Calculate gross, net, and operating profit margins for your business.
Percentage Calculator
Calculate percentages, discounts, increases, and percentage changes easily.
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes.
Website Cost Calculator
Estimate the total cost to build and maintain a website for your needs.
Instagram Bio Score
Analyze and score your Instagram bio for maximum impact.
200+ Calculators Across 14 Categories
From finance to physics, everyday life to sports — a calculator for every problem.
Everyday Life
Age, dates, coin flips, and daily utility calculators.
Finance
Investment, ROI, profit margin, and money calculators.
Math
Percentages, algebra, statistics, and number theory.
Health & Fitness
BMI, calories, hydration, and wellness calculators.
Unit Conversion
Convert length, weight, temperature, volume, and more.
Time & Date
Date differences, time zones, countdowns, and durations.
Automotive
Fuel efficiency, speed, distance, and vehicle calculators.
Text Tools
Word count, reading time, character analysis, and string tools.
Physics
Speed, force, energy, and science formula calculators.
Sports
Pace, pace per mile, training, and sports performance calculators.
Food & Cooking
Recipe scaling, nutrition, cooking time, and kitchen math.
Construction
Area, volume, materials estimate, and building calculators.
Photography
Exposure, aperture, DOF, and camera settings calculators.
Travel
Distance, fuel cost, timezone, and trip planning tools.
Developer Tools
Base64, JSON formatter, regex tester, and color converters.
Color Tools
Color palettes, shades, contrast checker, and hex converters.
Creator & Developer Tools
Utility tools for creators, developers, and everyday builders.
Instagram Bio Score
Analyze and score your Instagram bio for max impact.
Readability Checker
Check how readable your writing is for any audience.
Color Contrast Checker
Verify WCAG-compliant color contrast for accessibility.
SEO Title Checker
Check if your page title is SEO-optimized and compelling.
Word Counter
Count words, characters, sentences, and reading time.
Base64 Encoder
Encode and decode text and files in Base64 format.
Tools that don't waste your time.
Most online calculators are cluttered with ads, slow to load, and painful to use. toolooo is different — fast, clean, and focused on one thing: solving your problem immediately.
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