🏠 Everyday
Everyday tools solve the small calculations that come up around the house and on the go: splitting a bill, budgeting with the 50/30/20 rule, working out fuel cost for a trip, converting recipes, comparing unit prices in the shop, and finding how much paint or flooring a room needs. There are also generators and fun utilities for names, passwords and quick decisions. Each page explains the method and gives a worked example, and most calculators let you solve for any of the inputs. Nothing requires an account, all calculations happen in your browser, and the results are yours to use as you like. If an answer will feed a decision with real consequences, double-check the units and assumptions first. The section is organised by task, so the tool you need for a given chore is usually one click from the home page, and each page links to the related calculators nearby.
Available now
Password Generator
Generate a strong, secure password.
QR Code Generator
Create a QR code for any URL or text.
GPA Calculator
Calculate your GPA from any set of grades.
Grade Calculator
Overall grade from weighted assignments.
Concrete Calculator
How much concrete do you need?
Square Footage Calculator
Area of any room or space in square feet or metres.
BTU Calculator
Air conditioning BTU for any room size.
Electricity Cost Calculator
Cost to run any appliance.
IP Subnet Calculator
Subnet mask, network address, and host range.
IP Address Checker
See your public IP address, location, ISP, and timezone.
Coin Flip
Flip a virtual coin to get heads or tails.
Morse Code Translator
Translate text to Morse code and back. Play audio.
Mulch Calculator
Calculate cubic yards or meters of mulch needed for any garden bed or area.
NATO Phonetic Alphabet
Convert text to NATO phonetic alphabet (Alpha, Bravo, Charlie...).
Ohm's Law Calculator
Voltage, current, resistance, and power from Ohm's Law.
Wind Chill Calculator
Feels-like temperature from wind and air temperature.
Heat Index Calculator
Feels-like temperature from heat and humidity.
Periodic Table Lookup
Search elements by name, symbol, or atomic number.
Cooking Time Calculator
Meat roasting times, pasta, and egg cooking guides.
Sunrise & Sunset Calculator
Sunrise, sunset, and day length for any location and date.
Family Relationship Calculator
Work out cousins, aunts, uncles, and DNA shared.
Cooking Measurements Converter
Convert cups, tbsp, ml, oz, grams, plus oven temperatures and gas marks.
Safe Cooking Temperatures
USDA internal temperature guide for meat, poultry, fish, eggs, and more.
Stain Removal Guide
Step-by-step stain removal for 16 common stains, coffee, wine, blood, grass, and more.
Wedding Budget Calculator
Per-guest cost and suggested budget breakdown by category.
Paint Calculator
How much paint you need for a room, by wall area and coats.
Drywall Calculator
Estimate drywall sheets, joint compound, tape, and screws for a room.
Tile & Flooring Calculator
Tiles and boxes needed for a room, with a waste allowance.
Coffee to Water Ratio Calculator
Perfect coffee-to-water ratios for pour-over, French press, espresso, cold brew, and more.
Gravel Calculator
How much gravel do you need for a driveway, path, or drain?
Letter Grade Calculator
Convert a percentage score to a letter grade and GPA points across US, UK, German, and French scales, with cumulative GPA.
Recipe Scaler
Scale any recipe up or down by servings or a custom multiplier. Live ingredient list with smart count/volume/weight rounding.
Bread Calculator
Calculate any bread recipe in bakers' percentages. Enter flour weight and hydration, salt, yeast, and optional preferment percentages to get ingredient masses, total dough weight, and a per-loaf breakdown.
Roofing Square Calculator
Calculate roofing squares and shingle bundles from footprint area, roof pitch, and waste factor using the US convention (1 square = 100 sq ft; 3 bundles per square).
Pet Food Portion Calculator (Calories per Cup)
Estimate daily food portions for cats and dogs from weight and activity using RER guidelines.
Pet Ideal Weight Range Finder (by Breed)
Find the typical healthy weight range for your dog or cat breed.
Random Username Generator
Generate unique, memorable usernames with adjective + noun + number patterns.
Pomodoro Timer
Configurable Pomodoro timer for focus and break cycles with progress ring, cycle counter, audio alerts, and keyboard shortcuts.
Metronome
Online metronome with adjustable BPM, time signatures, tap tempo, volume control, and visual beat indicator.
Cooking Measurement Converter
Convert cooking measurements between cups, mL, fl oz, tbsp, tsp, and grams for common ingredients.
Roof Pitch Calculator
Convert between roof pitch (rise:12 run), angle in degrees, and percent slope. Compute rafter length and roof surface area from pitch and run.
KPH to MPH Converter
Convert kilometres per hour to miles per hour (and back) with exact factors.
Stones to Kilograms Converter
Convert stones (st) to kilograms (kg) and back, with the residual pounds (lb) shown alongside the UK / Ireland way.
Acres to Hectares Converter
Convert between acres and hectares, with square metres shown alongside. Exact factors (1 ac = 0.40468564224 ha).
PSI to Bar Converter
Bidirectional pressure converter between psi, bar, kPa, atm, MPa, and mmHg with live cross-update.
Watts to BTU Per Hour Converter
Convert watts to BTU per hour and BTU/h to watts instantly. Shows kW and tons of refrigeration too.
Paint Area Calculator
Work out how many litres (or gallons) of paint you need from wall dimensions, doors, windows, coats, coverage, and waste.
Tile Area Calculator
Work out how many tiles and boxes you need to tile a floor or wall, with cutting waste and pattern multipliers.
Tile Calculator
Estimate tiles and boxes needed for one or more rooms with a TCNA-recommended waste allowance (default 10%), area-per-box or tiles-per-box packaging input, and optional per-box cost.
Oven Temperature Converter
Convert oven temperatures between Celsius, Fahrenheit, Gas Mark and descriptive terms with a fan-oven rule of thumb.
Readability Score Calculator
Score any English text with the six classic readability indices, Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI, plus full word, sentence, and syllable statistics.