Projector Calculator
Alternatives
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Projector Calculator
Projector Calculator: Throw Distance, Screen Size & More
5
Problem
Users need to manually calculate projection parameters like throw distance and screen size using complex formulas or multiple tools. Time-consuming and prone to errors in home theater setups, classrooms, etc.
Solution
A web-based calculator tool that instantly computes projection throw distance, screen size, and throw ratio with interactive visualizations. Users input specs (lumens, aspect ratio) to get precise installation guidance.
Customers
AV technicians, home theater installers, educators setting up classrooms, and event planners designing projection spaces.
Alternatives
Unique Features
Combines all essential projection calculations into one tool with dynamic visual simulations for real-world setup scenarios.
User Comments
Saves hours compared to manual math
Eliminated guesswork in my home theater
Intuitive for non-experts
Essential for classroom AV planning
Free alternative to paid software
Traction
Launched on ProductHunt in June 2024 with 480+ upvotes. Used by 15,000+ monthly active users across 90+ countries. Integrated into XTEN-AV’s Pro AV design suite with $120k+ ARR.
Market Size
The global home theater market reached $12.3 billion in 2023 (Grand View Research), with 60% of setups requiring projection calculations.
Bra Size Calculator
Find your perfect size
4
Problem
Users struggle to determine accurate bra sizes through manual measurements or in-store fittings, leading to ill-fitting bras and discomfort due to inconsistent sizing standards across regions.
Solution
A web-based tool that generates accurate bra sizes using professional formulas and step-by-step measurement guides, allowing users to input measurements and receive size recommendations in US, UK, EU, and AU systems with sister size options.
Customers
Women shopping for lingerie online, lingerie retailers, and fashion influencers seeking reliable sizing solutions for customers or content creation.
Unique Features
Multi-region sizing system support, sister size recommendations, real-time calculation engine, and a visual measuring guide to minimize errors.
User Comments
Simplifies bra shopping online
Accurate across different brands
Clear measurement instructions
Saves time vs. in-store fittings
Helpful sister sizes feature
Traction
Launched on ProductHunt (500+ upvotes), integrated by 10+ lingerie brands, and used by 50,000+ monthly active users (self-reported).
Market Size
Global lingerie market valued at $84.4 billion in 2023 (Grand View Research), with 70% of women wearing incorrectly sized bras (Journal of Clothing Science).
Raycast Position Size Calculator
Position size calculator
2
Problem
Traders manually calculate position sizes using spreadsheets or basic calculators, leading to time-consuming processes and potential errors in risk management.
Solution
A Raycast extension tool that calculates optimal position sizes by inputting trading capital, risk tolerance, stop-loss, and target levels, streamlining trade planning.
Customers
Active day traders, portfolio managers, and financial analysts who prioritize precise risk management and use Raycast for workflow efficiency.
Unique Features
Integrated with Raycast for instant access, supports multiple risk-calculation methods (fixed price, ATR percentage), and auto-saves historical calculations.
User Comments
Saves time on manual calculations
Reduces risk management errors
Intuitive interface within Raycast
Essential for disciplined trading
Customizable risk parameters
Traction
Launched on ProductHunt with 200+ upvotes and 50+ installs in the first week
Market Size
The global algorithmic trading market, which includes risk management tools, was valued at $20.8 billion in 2023 (Grand View Research).
Market Size Calculator
Free market size calculator | Videodubber.ai
11
Problem
Users manually gather market data using spreadsheets and disparate sources, leading to time-consuming processes and potential inaccuracies in market analysis.
Solution
A free online tool that automates market size calculations, enabling users to input data and generate market potential insights for strategy and pitches.
Customers
Startup founders, business analysts, and investors requiring quick market assessments to validate opportunities or secure funding.
Alternatives
View all Market Size Calculator alternatives →
Unique Features
Specializes in simplified, free market size analysis with real-time data integration and report generation.
User Comments
Saves time on market research
User-friendly interface
Accurate calculations
Useful for investment presentations
Free tool with essential features
Traction
Launched on ProductHunt with 500+ upvotes
Market Size
The global market research services market was valued at $76.4 billion in 2021 (Statista).
Screen Size Checker
The dev's dashboard for all screen & viewport data.
2
Problem
Users rely on outdated tools to gather display data, leading to inefficient access to real-time viewport size, DPR, and responsive testing capabilities.
Solution
A dashboard tool that provides real-time display metrics. Users can view viewport size, device pixel ratio (DPR), and test website responsiveness in a modern Bento UI interface.
Customers
Developers and designers working on web projects, particularly those focused on responsive design and cross-device compatibility.
Alternatives
View all Screen Size Checker alternatives →
Unique Features
Real-time display data updates, integrated responsiveness testing, free access, and a sleek Bento UI optimized for quick insights.
User Comments
Saves time debugging responsive layouts
Intuitive interface for checking DPR
Essential for cross-browser testing
Free alternative to paid tools
Modern design stands out
Traction
Launched in 2023, featured on ProductHunt with 200+ upvotes. Active user base of 10k+ developers and designers, free tier with premium features in development.
Market Size
The global web development tools market is valued at $11.6 billion (2023), with responsive design tools being a critical segment.
Generator Sizing Calculator
Stop guessing. Find your generator size.
3
Problem
Users need to manually calculate the required generator wattage by researching appliance power consumption, adding values, and applying safety margins. Manual calculations are time-consuming, error-prone, and influenced by biased seller recommendations.
Solution
A web-based calculator where users select appliances from a preloaded database to automatically calculate total wattage and receive instant, unbiased generator size recommendations. Core features include an appliance database, automated wattage summation, and AI-driven recommendations.
Customers
Homeowners, RV owners, contractors, and electricians who prioritize accurate generator sizing for emergency power or outdoor activities.
Unique Features
Preloaded appliance wattage database, instant unbiased recommendations (no upsell bias), and free access without registration.
User Comments
Simplifies generator sizing process
Saves time compared to manual calculations
Reliable and unbiased results
Easy-to-use interface
Helpful for emergency preparedness
Traction
Launched on ProductHunt with 180+ upvotes and 40+ reviews. No disclosed revenue data, but traffic suggests steady adoption as a free tool.
Market Size
The global standby generator market is projected to reach $5.63 billion by 2028 (Fortune Business Insights, 2023), driven by rising demand for backup power solutions.
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)
Startup Market Size Calculator
Three approaches to calculating TAM/SAM/SOM with benchmarks
8
Problem
Startups manually estimate their Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) using spreadsheets or generic templates, which is time-consuming and lacks benchmark data, leading to potential inaccuracies and investor skepticism.
Solution
A free online tool that provides structured calculation methods (TAM/SAM/SOM) using real-world benchmarks from Equidam's dataset. Users input business details (e.g., target audience, pricing) and receive automated market size estimates for investor pitches.
Customers
Startup founders, early-stage entrepreneurs, and financial analysts preparing pitch decks for VC/angel funding rounds.
Unique Features
Combines three calculation approaches (top-down, bottom-up, value theory) with comparative data from Equidam's database of 35,000+ company valuations.
User Comments
Simplifies complex market sizing calculations
Provides investor-ready visualizations
Lacks customization for niche industries
Free alternative to expensive consultancy reports
Benchmarks improve pitch credibility
Traction
Featured on 1000+ pitch decks (Equidam claims)
Integrated with StartupYard and other accelerators
Free tier with premium valuation services ($99+/report)
Market Size
The global market research services industry reached $81.3 billion in 2023 (Statista), with SaaS-based analytical tools growing at 14.2% CAGR.
Sauna Heater Size Calculator
Find the Perfect Sauna Heater Size for Optimal Heat!
6
Problem
Individuals and businesses need to determine the appropriate sauna heater size, a task that often involves manual calculations and guesswork.
Manual calculations can be error-prone and time-consuming, leading to inefficient heating or increased costs.
Solution
A web-based tool
calculate the perfect sauna heater size for optimal heat by considering the specifics of the user's space.
Users can also embed this tool on their own websites, which is useful for organizations looking to implement it as a client service.
Customers
Sauna installers and manufacturers, home improvement enthusiasts, and wellness center managers who are looking to optimize sauna heating efficiency.
These individuals are likely to be involved in the setup or improvement of sauna facilities and are seeking tools to enhance the user experience.
Unique Features
Open-source nature, which allows for customization and integration into various platforms.
Free for users, providing an economic solution.
Allows for exact calculations rather than estimates, enhancing decision-making accuracy.
User Comments
Users find the tool easy to use and appreciate its accuracy in calculations.
The open-source feature is valued, providing customization opportunities.
It's considered a valuable resource for sauna-related projects.
Some users have successfully embedded the tool on their own websites.
The tool is praised for its user-friendly interface and effectiveness.
Traction
The traction details are not explicitly mentioned in the provided information.
Market Size
The global wellness market, which includes home and spa equipment like saunas, was valued at approximately $4.5 trillion in 2020, with a growth trajectory as consumers continue to prioritize health and well-being.
Interval Distance Calculator
Turn workout pace + time into distances for perfect routes
4
Problem
Runners use manual calculations to convert workout pace and time into distances for route planning on Strava, leading to inefficient and error-prone planning
Solution
A web-based tool that converts interval pace and time into precise distances, enabling runners to generate Strava-compatible routes instantly (e.g., input 6:00/km pace for 30 mins → output 5 km distance)
Customers
Runners and endurance athletes (ages 20-45, tech-savvy) who use Garmin/Strava for structured training and need accurate route planning
Unique Features
Direct integration of Garmin workout data into Strava route creation, real-time pacing adjustments, and automatic distance optimization for varied terrain
User Comments
Saves 15+ mins per session on calculations
Eliminates route mismatches with training goals
Seamless Garmin-Strava sync
Intuitive for non-technical users
Enables precise progression tracking
Traction
Launched 2 weeks ago, 850+ upvotes on ProductHunt
1,200+ active users (70% conversion from free trial)
Founder @RunTechTools has 2.3K followers on X
Market Size
The global running app market reached $10.6B in 2023 (Strava alone has 120M+ users)