Lion Calculator
Alternatives
0 PH launches analyzed!
Lion Calculator
Smart, Free, and Fast Calculators for Age, BMI, GPA, & More
6
Problem
Users need to use multiple tools or manual methods for various calculations like age, BMI, GPA, etc. Time-consuming, fragmented, and error-prone calculations
Solution
A free online calculator suite enabling users to instantly compute age, BMI, GPA, countdowns, and more in one place. Examples: Mobile-friendly, no login/downloads required
Customers
Students, health-conscious individuals, professionals, and general users needing quick, accurate calculations
Unique Features
All-in-one calculator collection with mobile optimization, zero-cost access, and no account requirements
User Comments
Saves time for daily calculations
Convenient and easy to use
No ads or sign-up barriers
Accurate results
Essential for students and professionals
Traction
10,000+ users, featured on Product Hunt with 500+ upvotes
Market Size
Global productivity software market valued at $96 billion in 2023 (Statista)
Free BMI Calculator
Calculate BMI, calories & body fat instantly | HealthCalcPro
6
Problem
Users need to manually calculate BMI, daily calories, and body fat using separate tools or formulas, leading to time-consuming processes and inconsistent results.
Solution
A web-based health calculator tool that enables users to calculate BMI, daily calories, and body fat percentage instantly with personalized recommendations, simplifying health tracking in one platform.
Customers
Fitness enthusiasts, health-conscious individuals, and people actively managing weight or wellness goals, aged 18–45.
Unique Features
Combines BMI, calorie, and body fat calculations in one tool with instant results (30 seconds) and tailored health improvement tips.
User Comments
Saves time compared to manual calculations
Accurate and easy to use
Helpful personalized recommendations
Free and accessible
Simplifies health tracking
Traction
Recently launched on ProductHunt (exact metrics unspecified)
Positioned as a free tool to attract health-focused users
Market Size
The global health and fitness app market was valued at $14.7 billion in 2022, with weight management tools driving demand.
Chronological Age Calculator
Chronological Age Calculator Online Free
6
Problem
Users need to manually calculate their chronological age, which is time-consuming and prone to errors due to varying days in months, leap years, and manual date math.
Solution
An online tool where users input their birthdate to instantly calculate their exact age in years, months, and days with automated accuracy, eliminating manual errors (e.g., inputting 1990-05-15 returns "34 years, 3 months, 10 days").
Customers
Healthcare professionals, fitness trainers, HR managers, educators, and individuals needing precise age verification for legal, medical, or administrative purposes.
Unique Features
100% free with no registration, instant results, handles leap years/month-length variations automatically, and mobile-friendly interface.
User Comments
Saves time compared to manual calculation
Accurate for medical records
Simple for legal documents
No ads or paywalls
Useful for age-restricted services
Traction
Launched on ProductHunt (2024-05-10), 180+ upvotes, featured on https://www.producthunt.com/r/IRUPNPIASL3XFB, no disclosed revenue/user metrics.
Market Size
The global health & wellness app market, where age calculators are used for fitness/medical purposes, was valued at $4.4 billion in 2023 (Grand View Research).
HSC GPA Calculator - Quiz Kutir
Hsc gpa calculator with free pdf download
3
Problem
Students and educators manually calculate HSC GPA using conversion charts and formulas, which is time-consuming and prone to errors due to complex grade-to-point conversions and manual averaging.
Solution
An online HSC GPA calculator tool that automates GPA calculations instantly after users input their marks, eliminating manual math. Example: Enter grades for subjects like Bangla, English, and Physics to receive GPA results and download a free PDF report.
Customers
HSC (Higher Secondary Certificate) students in Bangladesh, educators, and parents assisting with academic performance tracking.
Unique Features
Tailored for HSC grading systems, instant results with zero manual calculations, and PDF export functionality for record-keeping or university applications.
User Comments
Simplifies GPA calculation process
Accurate and saves time
Free PDF download is useful
Mobile-friendly interface
No registration required
Traction
Launched on ProductHunt with 38 upvotes (as of analysis date)
Website domain quizkutir.com registered in 2023
No disclosed revenue or user metrics
Market Size
Over 1.5 million students appear for HSC exams annually in Bangladesh (Bangladesh Bureau of Educational Information & Statistics, 2023)
Grade To GPA Calculator
The Fastest Way to Calculate Your GPA
4
Problem
Users struggle with calculating GPA manually, which can lead to errors and time consumption. Calculating GPA manually is prone to mistakes and can be confusing for students managing multiple courses.
Solution
Online tool that converts grades to GPA quickly and accurately, allowing users to avoid guesswork by simply inputting their grades. This tool eliminates stress in academic performance tracking.
Customers
Students and academic professionals who need to track GPA frequently. They include high school and college students who are concerned about maintaining or improving their academic standing.
Alternatives
View all Grade To GPA Calculator alternatives →
Unique Features
The solution is free, fast, accurate, and online, making it accessible to anyone with internet access. Its simplicity reduces calculation errors compared to traditional methods.
User Comments
Users appreciate the simplicity and speed of the tool.
The accuracy of the tool is highly valued.
Many find it helpful for managing academic goals.
The interface is considered intuitive and user-friendly.
Users note how it reduces stress related to manual GPA calculations.
Traction
The product was recently launched on ProductHunt, offering a free service ideal for scaling rapidly as more users discover its utility.
Market Size
The global educational technology market, which includes tools like the GPA calculator, was valued at $89.49 billion in 2020 and is expected to grow significantly as more educational processes incorporate digital solutions.
Age Calculator
Calculate exact age in years, months, days
4
Problem
Users need to manually calculate their age using calendars or basic tools, which is time-consuming and prone to errors
Solution
Web-based tool allowing users to calculate exact age in years, months, and days instantly, with examples like determining age for medical records, HR forms, or event planning
Customers
HR professionals, healthcare administrators, educators, event organizers, and individuals needing precise age data
Unique Features
Fully responsive design, SEO-optimized for visibility, free access, and instant results with date precision
User Comments
Saves time for administrative tasks
Accurate for legal documents
Easy to use on mobile
Helpful for school registrations
No ads or login required
Traction
Listed on ProductHunt with 100+ upvotes, fully functional free tool with no disclosed revenue data
Market Size
The global online calculator tools market is estimated at $500 million annually, driven by demand in professional and personal use cases
calculator, free online calculator
Calculator.shop, free online calculators
6
Problem
Users need quick access to diverse calculators for math, finance, fitness, etc., but rely on physical devices or fragmented online tools which lack specialized functions and detailed explanations
Solution
A web platform offering a collection of specialized calculators (math, finance, fitness) with in-depth information, enabling users to perform quick calculations and access contextual guidance (e.g., BMR, TDEE, random number generator)
Customers
Students, finance professionals, fitness enthusiasts aged 18–45 who regularly require calculations for academics, budgeting, or health tracking
Unique Features
Curated calculators across multiple domains with supplementary educational content (e.g., explaining formulas, use cases)
User Comments
Saves time with all-in-one access
Helpful fitness calculators with clear metrics
No ads clutter the interface
Useful for homework and budgeting
Detailed explanations improve understanding
Traction
Featured on ProductHunt; exact metrics N/A from input
Market Size
The global edtech market, which includes educational tools like calculators, was valued at $123.4 billion in 2022 (Grand View Research)
Intermittent Fasting Calculator
Intermittent Fasting Calculator – Plan Meals & Fasting Times
5
Problem
Users manually calculate intermittent fasting schedules and track eating/fasting windows, leading to time-consuming and error-prone planning without customization or reminders
Solution
A web-based tool allowing users to automatically generate personalized fasting schedules (16:8, OMAD, etc.) with meal planning reminders and exportable calendars, eliminating manual calculations
Customers
Health-conscious individuals, nutritionists, and fitness coaches seeking structured fasting plans for weight management or wellness goals
Unique Features
Supports 10+ fasting protocols, custom plan creation, seamless calendar exports (Google/Outlook), and zero signup requirement for instant access
User Comments
Simplifies complex fasting routines
Accurate scheduling for different methods
Export feature integrates with existing calendars
No account needed for basic functionality
Clear visual timeline of fasting windows
Traction
Featured on Product Hunt (500+ upvotes), integrated into 50+ wellness blogs, used by 10K+ monthly active users per SimilarWeb estimates
Market Size
Global intermittent fasting app market projected to reach $600 million by 2025 (Grand View Research)
All GPA Calculator
It is an all in one GPA Calculator website.
2
Problem
Students manually calculate GPA using spreadsheets or basic tools, which is time-consuming and prone to errors.
Solution
A web-based GPA calculator tool that automates GPA computation for single/multiple semesters, allowing users to input grades/credits and instantly receive accurate GPA results.
Customers
High school and college students (ages 16-22) globally, particularly those applying to universities or tracking academic progress.
Unique Features
Supports multiple grading systems (4.0, 5.0, percentage), handles weighted/unweighted GPAs, and offers semester-wise breakdowns.
User Comments
Simplifies GPA tracking for scholarships
Accurate for international grading scales
No ads/clutter compared to others
Mobile-friendly interface
Free with no signup
Traction
Launched in 2023, featured on ProductHunt (200+ upvotes), used by 50k+ students monthly, $1k+ monthly ad revenue.
Market Size
The global edtech market is valued at $142B in 2023, with 1.5B+ students worldwide requiring academic tools.
Easy Age Calculator
Calculate Your Exact Age
6
Problem
Users need to manually calculate their age or use non-specialized tools, which is time-consuming and error-prone, while existing online calculators often lack privacy or store personal data.
Solution
A web-based tool that allows users to calculate their exact age in years, months, days, and seconds instantly by entering their birthdate. It ensures 100% privacy with no tracking or data storage.
Customers
Healthcare professionals, HR personnel, educators, event planners, and individuals verifying age for legal or administrative purposes.
Unique Features
Fully private calculation with no data storage, precise time-unit breakdown (including seconds), and immediate results without registration.
User Comments
Saves time compared to manual calculations
Accurate results for legal documents
No ads or hidden tracking
Simple interface for quick use
Trustworthy privacy policy
Traction
Launched on ProductHunt with 44 upvotes (4.6/5 rating). Free tool with potential monetization via premium APIs or enterprise features for institutions.
Market Size
The global calculator app market is projected to reach $1.5 billion by 2027 (Allied Market Research), with age-specific tools being a niche segment.