Everyday Life & Utility Calculators

Calculate a tip by percentage or custom amount, include tax when needed, and split the final bill among people.

Divide a bill among participants using equal, weighted, percentage or itemized allocation, with rounded shares that reconcile to the total.

Estimate trip fuel use and journey cost from distance, efficiency, fuel price, tolls, parking and travellers.

Calculate real fuel consumption and efficiency from distance travelled and fuel used, then compare common output formats.

Calculate mileage from start and end odometer readings or a trip distance, fuel added and optional fuel price.

Estimate a trip budget from transport, fuel, lodging, meals, activities, permits, baggage, other costs and contingency.

Estimate recurring commute costs from distance, fuel, tolls, parking, maintenance, transit fares and workdays.

Estimate electricity usage and bill cost from direct kWh or power, hours, tariff blocks and fixed charges.

Estimate a water bill from meter readings or direct usage, flat or tiered rates, sewer charges and fixed fees.

Estimate household or connection data usage from streaming, calls, browsing, downloads and custom activity rows.

Track a mobile data plan allowance, current usage, average burn rate, projected overage and daily budget.

Estimate battery runtime from capacity, voltage, load, usable capacity, efficiency, reserve and optional duty cycle.

Estimate how long a battery or device may take to charge from one charge level to another.

Estimate household appliance energy use and cost from power rating, usage time, quantity, duty cycle and standby use.

Calculate basic room area, perimeter, volume and flooring allowance from room dimensions.

Estimate paintable wall or ceiling area and approximate paint quantity from room dimensions, openings, coats and coverage.

Estimate TV size or viewing distance from field-of-view geometry and aspect ratio.

Calculate physical screen width, height, area and optional pixel density from diagonal, aspect ratio and resolution.

Simplify aspect ratios, calculate missing dimensions and resize width and height proportionally.

Calculate pixel count, megapixels, print size, aspect ratio and estimated uncompressed image file size.

Estimate how long a file download may take from file size and download speed.

Estimate how long a file upload may take from file size and upload speed.

Estimate file size from text characters, raw image dimensions, audio/video bitrate or generic storage values.

Generate random integers or decimals from an entered range with optional uniqueness, sorting and deterministic seed mode.

Generate random passwords, passphrases or PINs locally from selected length, character categories and security options.

Generate a local QR code visual from text, URL, email, phone, SMS or Wi-Fi payload settings.

Generate local barcode visuals for Code 128, Code 39, EAN-13 and UPC-A values with check digit handling where applicable.

Count words and related text statistics locally, including sentences, paragraphs, reading time, speaking time and keywords.

Count characters, spaces, graphemes, code points, UTF-16 code units, UTF-8 bytes, words and line breaks locally.

Estimate reading time from pasted text or direct word count, with adjustable reading speed, speaking speed and page estimate.