Free Online Calculators and Tools

Estimate car loan payments, interest, and total vehicle financing cost.

Convert amounts between currencies for travel, shopping, and planning.

Calculate sale price, discount amount, and final price after savings.

Compare product prices by unit, weight, volume, quantity, and package size to find the better value.

Calculate monthly loan payments, total interest, and repayment cost.

Calculate percentages, increases, decreases, and percentage differences.

Estimate salary, hourly pay, monthly income, and simple paycheck-style breakdowns.

Calculate sales tax, before-tax price, and final total.

Calculate tips, split bills, and estimate per-person totals quickly.

Estimate monthly mortgage payments with taxes, insurance, PMI, and HOA fees.

Estimate how much house you may be able to afford based on income, debts, down payment, mortgage rate, and US or Canadian qualification assumptions.

Calculate VAT-inclusive and VAT-exclusive prices quickly.

Estimate total and active calories burned by walking time, distance, steps, terrain, or treadmill grade.

Calculate walking time from distance and speed, pace, or steps and cadence, with an optional estimated finish time.

Estimate tile quantity, waste allowance, boxes needed, and grout requirements.

Estimate wallpaper rolls, wall area, waste allowance, and paste packs.

Estimate paint needed, containers to buy, and approximate project cost.

Estimate flooring or carpet area, waste, material cost, installation cost, and total project cost.

Estimate drywall area, sheets needed, waste allowance, and approximate material cost for wall and ceiling projects.

Estimate fence length, panels, posts, gates, materials, and approximate project cost for a garden fence.

Estimate daily calories and dry, wet, or mixed food portions for your cat.

Estimate how much cat litter you need, how long it may last, and the approximate ongoing cost.

Estimate daily calories, dry or wet food portions, mixed-feeding amounts, package duration, and feeding costs.

Estimate your parrot’s life stage and human-age equivalent with species-aware age guidance.

Estimate your reptile’s human-age equivalent and life stage using species-specific references for six lizards and four snakes.

Calculate age from a birth date in years, months, and days.

Add or subtract days, weeks, months, or years from a date.

Compare times across different time zones quickly.

Estimate trip fuel cost based on distance, mileage, and fuel price.

Split shared travel costs across people fairly and quickly.