Utility Calculators
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Sites where Utility Calculators is a core feature are shown first, marked with a Core badge.
Find evidence-based clinical calculators and decision tools for medical professionals, including dosing guides, pharmacokinetic utilities, and drug databases.
Easily convert times between world cities and time zones. Enter a time and see instant conversions for major locations, making scheduling simple.
Explore a variety of online tools and calculators, including map distance and area calculators, plus unique web projects and reference resources.
Find free Excel and Google Sheets templates, calculators, and printable calendars for budgeting, business, and personal use. Easy to download and customize.
Check the current local time and date for any city or country worldwide, with automatic Daylight Saving adjustments and helpful time zone tools.
Check the current system time and unique calendar details, including playful formats like "Marsday" and custom dates, directly on xanthir.com.
Check up-to-date melt values for U.S. coins, including silver and gold, and use calculators to see how much your coins are worth based on current metal prices.
NTWind Software offers handy Windows tools like WinSnap and WinCam to make taking screenshots, managing windows, and boosting productivity easy.
Convert currencies and check live exchange rates worldwide. Currency.Wiki offers quick, accurate conversions plus global financial news and updates.
Day.js is a lightweight JavaScript library that helps you easily work with dates and times in your web projects, with a simple and fast API.
DNS Checker lets you instantly check DNS propagation status worldwide, helping you see if recent DNS or nameserver changes have taken effect.
Learn statistics and probability with free tutorials, videos, and online calculators for AP stats, regression, ANOVA, and more. Great for students and self-learners.
DaisyDisk helps you find and clean up files taking up disk space with interactive visual maps, making it easy to free up storage on your Mac.
Calculator+iO offers a wide range of free online calculators for math, finance, health, science, and more, all in one easy-to-use website.
PhotoPills helps you plan and create stunning photos by offering tools, guides, and calculators for any photography style or location worldwide.
BC Hydro helps you manage your electricity, track usage, pay bills, and access rebates for energy-efficient home upgrades across British Columbia.
Explore Jeffrey Friedl's personal site for photography guides, regex tools, and in-depth blog posts on tech, travel, and digital imaging.
Find recommended cryptographic key lengths from top organizations and reports to help you choose secure encryption settings quickly and easily.