Everyday Calculators
Percentage Calculator
Calculate a percentage of a number, find one value as a percentage of another, measure percentage change, or adjust a value by a percentage.
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Everyday Calculators
Convert units and plan shopping, tax, travel, energy, tips, and shared costs.
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Everyday Calculators
Discount Calculator
Calculate the final price, savings, effective discount, optional sequential discount, coupon, and tax.
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Everyday Calculators
Sales Tax & VAT Calculator
Add sales tax or VAT to a net price, or extract the tax and net amount from a tax-inclusive total.
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Everyday Calculators
Tip & Bill Split Calculator
Calculate a tip, total bill, equal per-person share, and optional round-up adjustment.
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Everyday Calculators
Unit Converter
Convert length, area, volume, mass, temperature, and speed with explicit units and adjustable display precision.
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Everyday Calculators
Unit Price Calculator
Compare two package prices across counts, mass, volume, or length and identify the lower normalized unit price.
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Everyday Calculators
Fuel Cost Calculator
Estimate trip fuel and cost using L/100 km, km/L, U.S. MPG, or Imperial MPG with clearly separated gallon definitions.
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Everyday Calculators
Electricity Cost Calculator
Estimate device energy use and cost by power, quantity, daily hours, days, and a user-entered price per kilowatt-hour.
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Everyday Calculators
Speed, Distance & Time Calculator
Calculate speed, distance, or travel time from the other two values with metric, imperial, nautical, and compound time units.
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Everyday Calculators
Handwriting Math Calculator
Write a complete expression with a mouse, touchscreen or stylus, automatically segment common mathematical symbols, review candidates and calculate safely.
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