Popular Calculators
Bottleneck & FPS
Estimate CPU/GPU bottleneck percentage and average FPS for your PC build at 1080p, 1440p, and 4K.
BMI Calculator
Calculate your Body Mass Index and find your healthy range by age.
Mortgage Calculator
Estimate your monthly payment and total interest on a home loan.
Crypto Profit & Tax Estimator
Estimate crypto capital gains, tax liability, and net profit after tax from purchase price, selling price, quantity, and tax bracket. Supports short-term and long-term holding periods.
Percentage Calculator
Three everyday percentage tools in one: find X% of Y, X as a % of Y, and percentage increase or decrease.
Streaming Waste Calculator
Track how much you waste on unused streaming subscriptions. Toggle Netflix, Spotify, Disney+, and more to see your true cost per hour of actual usage.
Gaming & Computers
D&D 5e Point Buy
Distribute 27 points across ability scores following official PHB rules.
Gacha Pull Probability
Calculate the cumulative chance of pulling a featured 5-star character using pity, soft pity and 50/50 math for Genshin, Star Rail, ZZZ and Wuthering Waves.
Bottleneck & FPS
Estimate CPU/GPU bottleneck percentage and average FPS for your PC build at 1080p, 1440p, and 4K.
Health & Fitness
Macro Split Calculator
Calculate your daily macronutrient targets in grams for carbs, protein, and fat based on your calorie target and fitness goal — balanced, high protein, low carb, or keto.
Heart Rate Zone Calculator
Calculate your personalized target heart rate training zones using the clinically validated Karvonen formula based on your age and resting heart rate.
BMR & TDEE Calculator
Find your Basal Metabolic Rate and Total Daily Energy Expenditure, then set your macros for fat loss, maintenance, or muscle gain.
Finance & Business
Mortgage Calculator
Estimate your monthly payment and total interest on a home loan.
Compound Interest
Project your investment growth with initial deposit, monthly contributions, and compounding frequency.
Salary & Paycheck Calculator
Estimate your net take-home pay from gross wages using US federal tax brackets, standard deductions, and FICA Social Security and Medicare withholdings.
Crypto & Web3
Crypto DCA Calculator
Simulate a dollar-cost averaging strategy for Bitcoin, Ethereum, or Solana and project your total invested amount, portfolio value, and profit over 1 to 5 years.
Crypto Profit & Tax Estimator
Estimate crypto capital gains, tax liability, and net profit after tax from purchase price, selling price, quantity, and tax bracket. Supports short-term and long-term holding periods.
Staking Rewards Calculator
Predict crypto staking rewards and compound yield from initial investment, base reward rate (APR), staking duration, and compounding frequency with a yearly breakdown.
Everyday & Math
Percentage Calculator
Three everyday percentage tools in one: find X% of Y, X as a % of Y, and percentage increase or decrease.
Tip & Split
Calculate the tip, sales tax and exact per-person share of any restaurant bill, with tip-before-tax or tip-after-tax modes.
Fraction Converter
Convert any simple or mixed fraction into a decimal, a percentage, its simplified form and its reciprocal, with an imperial inch chart.
Fun & Lifestyle
Streaming Waste Calculator
Track how much you waste on unused streaming subscriptions. Toggle Netflix, Spotify, Disney+, and more to see your true cost per hour of actual usage.
Binge Time Calculator
Find out how many hours and calendar days it takes to binge watch an entire TV series at your own pace and playback speed.
Caffeine Calculator
Add up your daily caffeine from coffee and energy drinks, compare it to the FDA 400 mg limit and your weight-based safe limit.