Live
Percentage Calculator
Calculate percentage of a number, percentage change, percentage increase, percentage decrease, and percent comparison.
Free Online Tools
Fast calculators, converters, generators, and tech tools.
UtilTrove is a growing library of simple browser-based tools for everyday problem-solving, technical work, planning, conversions, and calculations.
Live tools
Available now
These tools are already live and ready to use.
Live
Automation ROI Calculator
Estimate automation time savings, labor savings, payback period, first-year value, and return on investment.
Live
IPv4 Subnet Calculator
Calculate CIDR ranges, subnet masks, wildcard masks, usable host ranges, broadcast addresses, and network details.
Live
Password Generator
Generate strong random passwords with custom length, letters, numbers, symbols, readable mode, and copy support.
Live
File Size Converter
Convert bytes, bits, KB, MB, GB, TB, KiB, MiB, GiB, TiB, and other storage units.
Live
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin, and Rankine.
Live
Length Converter
Convert inches, feet, yards, miles, millimeters, centimeters, meters, kilometers, and nautical miles.
Live
Weight Converter
Convert pounds, kilograms, ounces, grams, milligrams, metric tons, US tons, and stones.
Live
Speed Converter
Convert MPH, KPH, meters per second, feet per second, knots, and Mach.
Live
Volume Converter
Convert liters, milliliters, gallons, quarts, pints, cups, fluid ounces, cubic meters, and cubic feet.
Live
Area Converter
Convert square feet, acres, square meters, hectares, square kilometers, and other area units.
Live
Time Converter
Convert seconds, minutes, hours, days, weeks, months, years, milliseconds, and microseconds.
Live
Pressure Converter
Convert pascals, kilopascals, bar, psi, atmospheres, torr, mmHg, and inHg.
Live
Energy Converter
Convert joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, therms, and foot-pounds.
Live
Power Converter
Convert watts, kilowatts, megawatts, horsepower, BTU/hr, calories per second, and foot-pounds per second.
Live
Fuel Economy Converter
Convert US MPG, Imperial MPG, kilometers per liter, liters per 100 kilometers, and gallons per 100 miles.
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Start with calculators, converters, generators, technical tools, or guides.
Calculators
Math, business, automation ROI, planning, finance, and technical calculators.
View calculators →Converters
File size, temperature, length, weight, speed, volume, area, time, pressure, energy, power, and fuel economy converters.
View converters →Generators
Password generators and future QR code, username, UUID, and random value generators.
View generators →Tech Tools
Subnet calculators, DNS tools, email tools, security checks, and IT troubleshooting utilities.
View tech tools →Simple tools without unnecessary friction
UtilTrove is built to keep common online tools fast, readable, and practical. The site focuses on tools that solve real problems without requiring account creation, downloads, or complicated setup.
Fast
Tools are designed to load quickly and provide clear results directly in the browser.
Practical
Each tool focuses on common real-world use cases for everyday users, students, creators, and technical workers.
Growing
More calculators, converters, generators, guides, and technical utilities will be added over time.
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If there is a calculator, converter, generator, tech tool, or guide you need, send the idea through the contact page.