Everyday Life Calculators

Assess your Body Mass Index with health implications

Calculate your TDEE and daily calorie target using the Mifflin-St Jeor equation. Set goals for weight loss, maintenance, or muscle gain.

Calculate your target heart rate zones

Track total hours worked from clock-in/out times, breaks, and overtime. Converts hourly wages to annual salary and paycheck estimates.

Run Pomodoro, 52/17, or custom focus sessions with scheduled break reminders. Includes a daily time-blocking planner for deep work.

Scale any recipe up or down by servings with automatic unit conversion. Great for meal prep, large gatherings, or cooking for one.

Calculate oven roasting times for meat and poultry by weight and method. Converts temperatures between Fahrenheit, Celsius, and Gas Mark.

Calculate monthly electricity, water, and gas costs from usage and local rates. Covers appliance energy costs and solar savings estimates.

Calculate how many gallons of paint you need for walls, ceilings, trim, or decks. Accounts for doors, windows, number of coats, and texture.

Estimate the full cost of a road trip by distance, MPG, and gas price. Includes hotel, meals, tolls, and per-person expense splitting.

Calculate fuel efficiency in MPG, L/100km, or km/L and estimate trip fuel costs. Compare gas vs. EV running costs and track CO₂ emissions.

Find the final price after a discount, or reverse-calculate the original price. Covers price-per-unit, markup, and tip calculation.

Add or remove sales tax from any price to get the full tax-inclusive total. Supports VAT, annual tax estimates, and multiple rate scenarios.

Calculate your exact age in years, months, days, and total weeks. Find your birth day-of-week and count down to your next birthday.

Find the ideal bedtime or wake-up time aligned with 90-minute sleep cycles. Tracks sleep debt and rates your rest from Excellent to Poor.

Calculate your daily water intake needs

Calculate pace and finish times for 5K, 10K, half, and full marathons. Generates per-mile splits and calorie burn for any distance.

Calculate your semester or cumulative GPA from course grades and credit hours. Find the grades you need to reach your target GPA.

Calculate percentage, percent change, and reverse percentages from any two numbers. Covers markup vs. margin and compound percentage growth.

Estime quanto você precisa economizar por mês para a aposentadoria

Compare renting vs. buying costs including equity, taxes, and opportunity cost. Find your break-even year and maximum home affordability.