20 FREE TOOLS · ☀
Everyday life calculators
Split costs, plan time and make small decisions easier.
Shopping & value
Compare discounts, unit prices and purchase-versus-rental scenarios.
Explore topic ↗6 calculatorsShared bills & household costs
Allocate bills and understand recurring spending.
Explore topic ↗5 calculatorsTime & daily planning
Convert clocks, durations and task rates into practical time estimates.
Explore topic ↗4 calculatorsEveryday digital measurements
Estimate downloads, screen dimensions and file capacity.
Explore topic ↗All everyday life calculators
Discount Calculator
Find a price after a single percentage discount.
Reverse Discount Calculator
Recover the original price from a discounted price and discount rate.
Tip Calculator
Calculate the tip amount from a bill and chosen percentage.
Split Bill Calculator
Split a bill and optional tip equally between a group.
Unit Price Calculator
Compare purchases by calculating their price per unit.
Reading Time Calculator
Estimate reading time from a word count and reading speed.
Download Time Calculator
Estimate the minimum time to download a decimal-megabyte file at a fixed speed.
Storage Capacity Calculator
Estimate how many equal-size files fit in decimal gigabytes of storage.
Screen Diagonal Calculator
Find a screen’s diagonal from its width and height.
Pixel Density Calculator
Calculate pixels per inch from resolution and physical screen diagonal.
Time Duration Calculator
Find elapsed minutes between start and end times on a 24-hour clock.
Work Hours Calculator
Find paid hours from gross shift duration after an unpaid break.
Weekly Hours Calculator
Estimate weekly hours from equal daily hours and days worked.
Speaking Time Calculator
Estimate delivery time from script length and a chosen speaking rate.
Rent Split by Income Calculator
Allocate one person’s share of rent in proportion to two incomes.
Monthly to Annual Cost Calculator
Translate a recurring monthly payment into an annual total.
Subscription Cost Per Use Calculator
Estimate cost per use of a subscription during one billing period.
Shared Utility Split Calculator
Allocate a utility bill between equal shares and a chosen personal adjustment.
Buy Versus Rent Break Even Calculator
Find whole rental uses needed to equal a purchase cost under simple fixed-cost assumptions.
Multi Buy Unit Cost Calculator
Calculate the effective unit price of a fixed-price multi-buy offer.
Make your inputs count
Use quantities from the same period and in matching units. For money shared between people, rounding can leave a small remainder. Recalculate when your assumptions change rather than treating the example values as recommendations.