Browse by Site

freedominvoice.com

Create professional invoices online for free without signing up.

freshmangoz.com

Free online calculator for gardening and household projects.

fulfily.nanocorp.app

Free stockout calculator for Shopify inventory planning and warehouse management.

fundsindia.com

Investment platform for mutual funds and other financial products with planning content and calculators. The site provides retirement-related tools and explanations. ([fundsindia.com](https://www.fundsindia.com/apy-calculator?utm_source=openai))

fussfreebrowserapps.com

Fuss-Free Browser Apps hosts simple, offline-capable tools that run in your browser. ([fussfreebrowserapps.com](https://fussfreebrowserapps.com/audio-duration-filesize-calculator.html))

gihep.com

GI Hep provides clinical calculators and hepatology-focused reference tools intended for quick medical calculations. ([gihep.com](https://gihep.com/calc_astalt.php?utm_source=openai))

gigacalculator.com

GIGAcalculator.com provides a range of calculators for various financial and statistical needs, including an Average Percentage Calculator and an Average Return Calculator to help users with their calculations.

gpsvisualizer.com

GPS Visualizer is an online tool for visualizing GPS data and calculating distances between points. It offers a Bearing Calculator to determine the direction from one point to another.

gsm-field-suite.com

Free browser-based RF analysis and link budget tools for wireless engineers.

gtmetrix.com

GTmetrix benchmarks website performance from multiple test locations and reports Web Vitals, page details, and waterfall data.

gearfinder.cc

Gearfinder.cc hosts online tools for cyclists, offering calculators like a Bike Cadence and Speed Calculator, as well as a Bike Gear Calculator to help with gear selection.

geeksforgeeks.org

GeeksforGeeks Utilities hosts useful online tools for developers and tech enthusiasts. One featured tool converts Base64 to XML, demonstrating its functionality in data transformation tasks.

genaddr.com

Free synthetic address and test data generator for QA, form validation, and database seeding.

gidamagecalc.com

Free browser calculator for comparing Genshin Impact character damage with different artifacts, weapons, and buffs.

geogebra.org

GeoGebra is a suite of free interactive math tools spanning algebra, geometry, calculus, statistics, and CAS — used widely in classrooms from middle school through university.

mysterytoolbox.organisingchaos.com

Geocaching Mystery Toolbox is a domain hosting various tools for solving puzzles and challenges, including the Beaufort Cipher, which aids in decoding messages using wind direction information.

getrandomgenerator.com

Get Random Generator is a directory hosting various random generators for users to generate numbers, words, colors, and other random data.

globalrph.com

GlobalRPH is a long-running clinical reference site with drug information, dosing resources, and medical calculators used by healthcare professionals.

goallcalculator.com

Go All Calculator is goallcalculator.com hosts calculators to help you assess environmental impacts and economic sustainability, such as the Atom Economy Calculator and Bag Footprint Calculator.

godigit.com

Insurance company with consumer finance guides and calculators for pensions and policies. It offers informational tools for retirement planning. ([godigit.com](https://www.godigit.com/finance/atal-pension-yojana-scheme/atal-pension-yojana-calculator?utm_source=openai))

gowebtool.com

GoWebTool.com hosts a collection of online tools, including a Barrel Wine to Liters Converter for easy unit conversions.

goodcalculators.com

GoodCalculators.com hosts a variety of calculators to simplify complex mathematical tasks, including the Balloon Payment Calculator for financial planning.

gradecalchub.com

Calculate grades, GPA, and academic performance with support for multiple countries' grading systems.

gramsinpound.com

Free pounds to grams converter with conversion charts, worked examples, and FAQs for cooking, shipping, and fitness.

gramstocups.io

Convert grams to cups for 400+ baking ingredients with support for multiple cup standards.

grayscaleimage.org

Browser-based image converter with grayscale and creative color effects.

gridmaker.space

Free online grid overlay tool for reference photos and photo grid layouts.

gridlover.net

Gridlover.net hosts a Baseline Grid Calculator tool for designers and developers to create responsive layouts based on a 12-column grid system.

groupmixer.app

Free browser-based group generator for classrooms, workshops, and events with balanced grouping and repeat-pairing reduction.

guidecalculator.com

General-purpose calculator directory offering free online tools across many categories such as chemistry, finance, and health. ([guidecalculator.com](https://guidecalculator.com/))

guitarchalk.com

guitarchalk.com hosts BPM Calculator to help musicians determine the beats per minute for their songs.

hdfcbank.com

HDFC Bank is an Indian banking and financial services company. It provides a Bike EMI Calculator to help customers estimate their monthly installment payments for purchasing a bike.

hsh.com

HSH.com hosts financial tools for homeowners. Bi-weekly mortgage payment calculator is among its offerings to help manage home loans effectively.

hsrwarpcalc.com

Free browser calculator for Honkai: Star Rail gacha pulls, budgets, and banner planning.

htmlcolorcodes.com

htmlcolorcodes.com provides a simple tool to find and use HTML color codes, including a sample for beige.

hammerio.com

Free construction and home improvement calculators for estimating materials and costs.

tools.parryqiu.com

Multilingual suite of 32 free utilities for text processing, image handling, PDF manipulation, and developer tasks.

handymantoolkits.com

Free browser-based construction calculators for estimating materials and planning DIY projects.

happyhues.co

Happy Hues is a curated colour-palette inspiration site, showing palettes applied to a real interface for context.

health.harvard.edu

health.harvard.edu hosts a collection of health-focused tools designed to help users manage their well-being and make informed decisions about their health. Their BMI calculators provide a quick way for individuals to assess their body mass index, a key indicator of overall health.

headlinecapitalization.com

Capitalize titles and headlines to APA, MLA, Chicago, AP, and other style guide standards.

healthcalculatoronline.com

Health Calculator Online is healthcalculatoronline.com hosts various online calculators designed to help users make informed decisions about their health and nutrition. Their Baby Formula Calculator allows parents to quickly determine the right amount of formula for their baby based on age and weight.

calculators.doseway.com

Health Calculators by Doseway is a website that hosts various health-related calculators. It offers a Baby's Milk Intake Calculator to help parents determine appropriate milk feedings for their infants, based on factors like weight and age.

healthychildren.org

HealthyChildren.org (American Academy of Pediatrics) provides helpful tools for parents, including a Benadryl Dosage Calculator to assist with proper medication dosing.

healthyplace.com

Mental health and addiction content site that publishes an alcoholism screening test using AUDIT guidance. ([healthyplace.com](https://www.healthyplace.com/addictions/alcoholism/alcoholism-screening-test))

heatpumpwise.com

Heat pump calculators and guides for US homeowners—sizing, savings, rebates, and brand comparisons.

heymato.com

Free tools and guides for podcasters and content creators.

hibi-calc.jp

Free online calculators for mathematics, finance, science, and everyday conversions.

highlightcode.com

Free online tool for syntax-highlighting code and exporting formatted code to Word, OneNote, Google Docs, and documentation platforms.

home-water-works.org

Home Water Works is a resource for homeowners looking to manage their water usage effectively. It offers tools like the Bath vs Shower Calculator to help users compare the water consumption of different bathing options and make informed decisions about saving water in the home.

hcuonline.com

Hometown Credit Union is an online resource for managing finances, offering tools like a Bank Reconciliation Calculator to help members keep track of their accounts accurately.

housenix.com

HouseNix offers a suite of real estate decision tools focused on mortgages, investing, and affordability. ([housenix.com](https://housenix.com/calculators?utm_source=openai))

howmuchwatts.com

Free online calculators for solar power, electricity costs, and energy systems analysis.

howmuchcouldiearn.com

Historical investment calculator for comparing Bitcoin, S&P 500, gold and stocks.

howto.bike

HowTo.Bike hosts Bike Gear Calculator, a tool to help you determine the right gear ratio for your bike based on your riding style and desired speed.

humanmetrics.com

Humanmetrics.com hosts various personality and career assessment quizzes to help individuals explore their interests, strengths, and potential career paths.

huntr.co

huntr.co hosts Before/After Transformer, an AI tool that compares images before and after a transformation for visual analysis and editing.

bgp.he.net

bgp.he.net provides a BGP AS Lookup tool to help identify and lookup Autonomous System (AS) numbers in the Border Gateway Protocol network.

hyperphysics.gsu.edu

HyperPhysics is an educational physics reference from Georgia State University with tables and explanations for electrical topics. ([hyperphysics.gsu.edu](https://www.hyperphysics.gsu.edu/hbase/Tables/wirega.html))

ilovecalculaters.com

I Love Calculaters is a site where users can find various online calculators and converters to simplify their daily tasks. One of its tools is a Banana Equivalent Dose Radiation Converter, which helps in understanding radiation exposure levels by converting them into banana equivalents for easier comprehension.