Fast, free calculators and converters you can trust
Utilsverse gives you instant tools for everyday math, time and date planning, unit conversions, and more. Every page is ad-supported but lightweight, keyboard-friendly, and built with accessibility in mind.
Start with the live calculators below and follow the roadmap for upcoming releases. No accounts, no data collection-just quick utilities with clear explanations so you can verify every result.
Popular uses
- Calculate exact age for immigration, school, or HR forms
- Compare dates for project milestones and planning
- Work out percent change, margins, discounts, and tips
- Convert temperatures across °C, °F, and K for cooking or science
Why Utilsverse?
- Client-side, static export for fast global performance
- SEO-first pages with helper text, FAQs, and related links
- Consistent layouts and theming with ToolShell + surface components
- Fully typed utilities in `src/utils` backed by automated tests
Quick links (Live)
All tools
Showing 53 of 53Age Calculator
LiveExact age in years, months, days.
Age on Other Planets
LiveFun cosmic age.
Angle Converter
Livedeg <-> rad.
Area Converter
Livem^2, ft^2, acre, hectare.
Base64 Encode/Decode
LiveBase64 & URL-safe decode.
BMI Calculator
LiveBody Mass Index with category.
Color Converter
LiveHEX, RGB, HSL & palette.
Currency Converter
LiveLive FX rates with caching.
Data Size Converter
LiveBits, bytes, kB-YB, KiB-YiB.
Date Difference
LiveDays plus Y/M/D between dates.
Discount Calculator
LiveStandalone discount helper.
EMI Calculator
LiveMonthly loan payments & payoff.
Energy Converter
LiveJ, kWh, cal.
Fraction Simplifier
LiveReduce to lowest terms.
GST / VAT Calculator
LiveInclusive & exclusive tax splits.
Health Metrics
LiveBMR, TDEE & body fat estimates.
Investment Calculators
LiveSIP, compound, ROI dashboard.
IP Lookup
LiveGeolocate any IP or domain.
JSON Formatter
LiveValidate, pretty, minify.
JWT Decoder
LiveDecode headers & claims.
Length Converter
Livem, cm, mm, in, ft, yd, km, mi.
Lorem Ipsum
LiveGenerate filler text.
Number Base Converter
Livebin / dec / hex.
Palette Picker
LiveAnalogous, complementary, etc.
Percentage Calculator
LiveX% of Y, percent change, discount.
Pomodoro Timer
LiveCustom focus & break loops.
Power Converter
LiveW, kW, hp.
Pressure Converter
LivePa, bar, atm, psi.
QR Code Generator
LiveCustom colors & PNG download.
Random Password Generator
LiveStrong, configurable passwords.
Ratio Calculator
LiveSimplify and scale ratios.
Slugify
LiveURL-safe slugs & cases.
Speed Converter
Livem/s, km/h, mph, knot.
Stopwatch & Timer
LiveLaps, countdowns, presets.
Temperature Converter
LiveCelsius / Fahrenheit / Kelvin.
Text Case Converter
LiveUpper, lower, title, sentence.
Time Converter
Livems/s/min/hr/day.
Time Zone Converter
LiveConvert across time zones.
Unix Time <-> Date
LiveEpoch <-> human time.
URL Encode/Decode
LiveEncode safely.
User-Agent Parser
LiveDetect browser, OS & bot signals.
UUID v4 Generator
LiveRFC 4122 IDs.
Volume Converter
LiveL, mL, gal, qt, cup.
Weight/Mass Converter
Liveg, kg, lb, oz, t.
World Clock
LiveCompare global meeting times.
AI Image Upscale
Coming soonEnhance resolution.
Audio Cutter/Converter
Coming soonTrim and convert audio.
File Converters
Coming soonDocs, images, audio, video.
Finance Scenario Planner
Coming soonAdvanced loan comparisons.
Image Resize/Compress
Coming soonOptimize images.
PDF Merge/Split/Compress
Coming soonEssential PDF tools.
Retirement Projections
Coming soonPlan corpus needs & drawdowns.
Video <-> GIF
Coming soonMake and share GIFs.