AliVision Calculator Calculate visual acuity, lens power, and eye health metrics. Distance from chart (meters) Smallest line read (Snellen denominator) Refractive error (D) Lens type Single VisionBifocalProgressive Calculate Reset Calculating vision metrics… Vision Results Visual Acuity (Snellen) – Visual Acuity (Decimal) – Lens Power Needed – Lens Type – Summary Distance: Smallest line read: Refractive … Read more
Vietnam Draft Lottery Calculator Estimate your draft risk from the historic 1970 Vietnam lottery. Your Birthdate Lottery Year 197019711972 Calculate Reset Analyzing lottery order… Draft Lottery Results Lottery Number – Draft Risk – Drafted? – Order Percentile – Summary Birthdate: Lottery Year: Draft Number: Draft Lottery Facts 1970: First Vietnam lottery, 366 birthdates, numbers 1-366. … Read more
Tree Removal Calculator Estimate cost and time for removing a tree based on size, location, and complexity. Tree Height (meters) Trunk Diameter (cm) Distance from Road (meters) Complexity Easy (open yard, no obstacles)Moderate (some obstacles, wires)Complex (tight access, many obstacles) Include Stump Removal? YesNo Calculate Reset Calculating removal estimate… Tree Removal Estimate Estimated Cost – … Read more
Trace Width Current Calculator Calculate recommended PCB trace width for a given current, copper thickness, and temperature rise. Current (A) Copper thickness 1 oz/ft² (35 µm)2 oz/ft² (70 µm)3 oz/ft² (105 µm) Max temperature rise (°C) Layer type External (top/bottom)Internal Calculate Reset Calculating trace width… Trace Width Results Required Width – Current Capacity – Copper … Read more
Tirzepatide Reconstitution Calculator Calculate how to reconstitute Tirzepatide for precise dosing. Vial Strength (mg) Diluent Volume (ml) Desired Dose (mg) Syringe Size (ml) Calculate Reset Calculating reconstitution… Reconstitution Results Concentration (mg/ml) – Volume per Dose (ml) – Max Syringe Dose (mg) – Number of Doses per Vial – Summary Vial Strength: Diluent Volume: Desired Dose: … Read more
TikTok Pay Calculator Estimate your potential TikTok earnings from views, followers, and engagement. Total Video Views Followers Average Engagement Rate (%) Region United StatesUnited KingdomEuropeAsiaOther Have Brand Sponsor? NoYes Calculate Reset Calculating TikTok pay… TikTok Earnings Estimate Estimated Creator Fund Pay – Estimated Sponsor Pay – Engaged Users – Estimated CPM – Summary Views: Followers: … Read more
TikTok Creator Fund Calculator Estimate your potential TikTok earnings based on views, engagement, and fund rates. Total Video Views Region United StatesUnited KingdomEuropeOther Engagement Rate (%) Estimated Fund Rate (per 1000 views) $ Default: $0.03 – $0.05 per 1000 views (varies by region) Calculate Reset Calculating TikTok earnings… Estimated TikTok Fund Earnings Estimated Earnings – … Read more
Texas Toll Calculator Estimate tolls for major Texas toll roads and calculate your trip cost. Select Toll Road 183A Toll Road290 Toll RoadSH 130 Toll RoadLoop 1 (MoPac)Dallas North TollwaySam Houston TollwayOther/Estimate Vehicle Type Car/Van/Pickup2-Axle Truck/SUV3-Axle Vehicle4-Axle+ Vehicle Distance (miles) Payment Type TxTag/EZTagCash Calculate Reset Calculating toll cost… Toll Cost Results Estimated Toll – Avg … Read more
Stripe Fee Calculator Calculate Stripe payment processing fees and net received amount. Amount to receive/send $ Country United StatesEuropeUnited KingdomIndiaOther Transaction Type Card PaymentACH/Bank TransferInternational Card Calculate Reset Calculating Stripe fee… Fee & Net Results Stripe Fee – Net Received – Percent Fee – Amount to Send (to get target) – Summary Country: Transaction Type: … Read more
Square Transaction Fee Calculator Calculate Square fees for your card and online transactions. Transaction Amount $ Transaction Type Card Present (Swiped/Tapped)Card Not Present (Keyed-In)OnlineInvoice Calculate Reset Calculating Square fees… Fee & Net Results Fee – Net Amount – Percent Fee – Amount to Request – Summary Type: Amount: Fee Explanation Card Present: 2.6% + $0.10 … Read more
Split Test Calculator Calculate statistical significance for your A/B test (conversion rate, p-value, and uplift). Control Group Visitors Control Group Conversions Variant Group Visitors Variant Group Conversions Calculate Reset Crunching the statistics… Split Test Results Control Conversion Rate – Variant Conversion Rate – Uplift (%) – p-value – Summary Control Visitors: Control Conversions: Variant Visitors: … Read more
Skin Age Calculator Estimate your skin’s biological age based on lifestyle, habits, and genetics. Your chronological age (years) Skin type NormalDryOilyCombination Daily sun exposure (hours) SPF/sunscreen usage AlwaysOftenSometimesRarely/Never Do you smoke? NoYes Hydration ExcellentGoodFairPoor Average daily stress level LowModerateHigh Calculate Reset Analyzing your skin age… Skin Age Results Estimated Skin Age – Skin Age Difference … Read more
Sibling Age Gap Calculator Calculate the age gap between siblings and get insights for family planning! Sibling 1 Birthdate Sibling 2 Birthdate Reference Date (optional) Defaults to today if blank Calculate Reset Calculating sibling age gap… Sibling Age Gap Results Age Gap (years) – Age Gap (months) – Age Gap (days) – Older Sibling – … Read more
Scissor Truss Design Calculator Calculate geometry and design parameters for your scissor truss roof. Building Span (meters) Overall Height, Peak to Bottom (meters) Bottom Chord Pitch (%) Top Chord Pitch (%) Overhang Length (meters) Calculate Reset Calculating truss design… Scissor Truss Results Top Chord Length (each) – Bottom Chord Length – Interior Height (from bottom … Read more
Salvage Car Value Calculator Estimate your salvage car’s current value based on market and condition. Estimated retail value (if not damaged) $ Estimated damage percent (%) Salvage factor (%) (Typical: 20%–40% of retail value) Estimated repair cost $ Calculate Reset Estimating salvage value… Salvage Value Results Estimated Salvage Value – After Repair Value – Potential … Read more
Running Weight Loss Calculator Estimate your weight loss, calories burned, and running plan for your target. Your weight (kg) Running pace (min/km) Running duration (minutes) Your goal: lose weight (kg) Calculate Reset Calculating running plan… Running Weight Loss Results Calories Burned – Fat Burned (g) – Sessions Needed – Days to Goal – Summary Weight: … Read more
Roof Trusses Calculator Estimate truss length, height, pitch, and lumber needed for your roof project. Building span (width) (meters) Roof rise (height) (meters) Overhang per side (meters) Number of trusses Spacing between trusses (meters) Calculate Reset Calculating roof truss details… Roof Truss Results Truss Length (Each Side) – Roof Pitch (ratio) – Total Lumber (meters) … Read more
Roof Truss Calculator Calculate roof truss dimensions, rise, and area for simple gable trusses. Truss span (width) [m] Roof pitch (%) Overhang per side [m] Rafter run (half span + overhang) [m] Usually calculated automatically Calculate Reset Calculating truss geometry… Truss Results Rafter Length – Truss Height (Rise) – Roof Area (per truss) – Run … Read more
RIQ Calculator Calculate your Relative Intelligence Quotient (RIQ) based on test scores, age, and comparison population. Your Test Score Population Average Score Population Standard Deviation Your Age Calculate Reset Calculating RIQ… RIQ Results RIQ Score – Percentile – Above/Below Average – Age Group – Summary Test Score: Population Avg: Std. Deviation: Age: About RIQ Formula: … Read more
Projector Viewing Distance Calculator Find the optimal distance for your projector screen size and resolution. Screen Size (diagonal, inches) Aspect Ratio 16:9 (HD/Wide)4:3 (Classic)21:9 (UltraWide) Resolution HD (1280×720)Full HD (1920×1080)4K UHD (3840×2160) Calculate Reset Calculating viewing distance… Optimal Viewing Distances Screen Width – Screen Height – Min Distance – Max Distance – Summary Screen Size: … Read more
Projector Brightness Calculator Estimate required projector brightness (lumens) for your room, screen, and usage scenario. Screen width (meters) Screen height (meters) Ambient light level Dark (home theater)Dim (living room, some light)Normal (office/classroom)Bright (daylight, events) Usage type Movies / Home TheaterPresentations / SlidesGamingLarge Venue Calculate Reset Calculating recommended projector lumens… Recommended Brightness Screen Area – Required … Read more
Prime or Composite Calculator Check if a number is prime or composite, get factors, and useful info! Enter a positive integer Calculate Reset Checking… Results – Factors Useful Info Copy Results Share Results Numbers are everywhere in our daily lives, but understanding them—especially whether they are prime or composite—can be tricky. That’s where the Prime … Read more
Power to Weight Ratio Calculator Calculate your vehicle’s power-to-weight ratio for better performance insights. Power (hp or kW) Power Unit Horsepower (hp)Kilowatt (kW) Vehicle Weight (kg or lbs) Weight Unit Kilograms (kg)Pounds (lbs) Calculate Reset Calculating ratio… Results Power-to-Weight (hp/kg) – Power-to-Weight (hp/lb) – Power-to-Weight (kW/kg) – Power-to-Weight (kW/lb) – Summary Power: Weight: Formula Used … Read more
Plywood Cut Calculator Calculate how many plywood sheets you need and how to cut them for your project. Sheet width (inches) Sheet height (inches) Number of pieces needed Piece width (inches) Piece height (inches) Calculate Reset Calculating plywood cuts… Plywood Cut Results Sheets Needed – Pieces Per Sheet – Total Waste (%) – Cuts Per … Read more
Pluto Calculator Calculate your weight, age, and a year on Pluto! Your weight on Earth (kg) Your age (years) Calculate Reset Calculating Pluto values… Pluto Results Weight on Pluto – Age on Pluto – Pluto Year (Earth Years) – Pluto Day (Earth Days) – Summary Your Earth Weight: Your Earth Age: Pluto Facts Gravity: 0.063g … Read more
Playback Time Calculator Calculate total playback time, adjusted time, and time saved or extended by changing speed. Original Duration – Hours Original Duration – Minutes Original Duration – Seconds Playback Speed 0.5x (half speed)0.75x1x (normal)1.25×1.5×1.75x2x (double speed) Calculate Reset Calculating playback time… Results Original Duration – Playback Speed – Adjusted Playback Time – Time Saved/Added … Read more
Pesi Calculator Calculate your Body Mass Index (BMI), ideal weight, and weight status. Weight (kg) Height (cm) Gender MaleFemale Calculate Reset Calculating your results… Pesi Results BMI – Ideal Weight – Weight Status – Weight Difference – Summary Weight: Height: Gender: BMI Categories Underweight: BMI < 18.5 Normal: BMI 18.5 – 24.9 Overweight: BMI 25 … Read more
Perimeter Of A Semicircle Calculator Calculate the perimeter, diameter, and area of a semicircle by radius or diameter. Input type RadiusDiameter Radius (r) Diameter (d) Calculate Reset Calculating perimeter… Semicircle Results Perimeter – Diameter – Area – Circumference (full circle) – Summary Input Type: Radius: Diameter: Formulas Used Perimeter: πr + 2r Area: (πr²) / … Read more
Pension Calculator Estimate your future pension amount based on your current contributions and years until retirement. Current Age Retirement Age Current Pension Balance $ Annual Contribution $ Expected Annual Growth Rate (%) Calculate Reset Calculating your future pension… Pension Estimate Results Final Balance – Years to Retire – Monthly Pension (20 years) – Total Contributions … Read more
Paver Pattern Calculator Calculate the number and layout of pavers needed for your project. Project area length (ft) Project area width (ft) Paver length (inches) Paver width (inches) Pattern Type Running BondHerringboneBasket WeaveGrid/Stack Bond Joint Gap (inches) Calculate Reset Calculating paver pattern… Paver Pattern Results Total Area (sq ft) – Paver Coverage (sq ft) – … Read more