Simple Daily Calculators

Calculator library

Popular Calculators

Find practical calculators for everyday money, home, car, internet, date and business questions.

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Money Discounts, VAT and savings tools. Home & Utilities Electricity and home bill tools. Car Fuel costs and mileage tools. Internet & Tech Speed, downloads and data tools. Time & Date Dates, work hours and duration tools. Business Profit, ROI and markup tools.

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27 tools
Percentage CalculatorCalculate percentages, increases, decreases and comparisons. › Discount CalculatorFind discount amount and final price after discount. › VAT CalculatorAdd or remove VAT from a price. › Fuel Cost CalculatorEstimate trip cost from distance, consumption and fuel price. › Electricity Cost CalculatorCalculate appliance electricity cost from watts, hours and rate. › Download Time CalculatorEstimate download time from file size and internet speed. › Data Usage CalculatorEstimate daily or monthly internet data usage. › Date Difference CalculatorCalculate the difference between two dates. › Loan Payment CalculatorEstimate monthly loan payments from amount, rate and term. › Profit Margin CalculatorCalculate profit, margin percentage and markup. › Price Per Unit CalculatorCompare products by price per item, kg, liter or unit. › Compound Interest CalculatorEstimate future value with compound interest. › Time Duration CalculatorCalculate hours and minutes between two times. › Age CalculatorCalculate age in years, months and days. › Simple Interest CalculatorCalculate simple interest and final amount. › Monthly Budget CalculatorEstimate monthly expenses and remaining money. › Hourly to Salary CalculatorConvert hourly rate to annual salary. › Bill Split CalculatorSplit a bill with tax and tip. › AC Running Cost CalculatorEstimate air conditioner electricity cost. › Flooring CalculatorEstimate flooring area with waste. › Trip Time CalculatorEstimate travel time from distance and speed. › Upload Time CalculatorEstimate how long an upload will take. › Streaming Data CalculatorEstimate streaming data usage. › Aspect Ratio CalculatorCalculate proportional image or video size. › Business Days CalculatorCount weekdays between two dates. › ROI CalculatorCalculate return on investment. › Conversion Rate CalculatorCalculate conversions as a percentage. ›

Why this calculator library is useful

Each page is designed as a small self-contained tool. You can calculate a value, check the formula, see examples and move to related calculators without searching the whole site again.

The library is intentionally focused on everyday calculations: prices, bills, data, dates, car costs, working time and small business numbers.

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