Life Calculators

Free tip calculator to find tip amount, total bill, and per-person split. Useful for restaurants, bars, delivery, travel, and service-based spending.

Free discount calculator to find sale price, amount saved, and final cost after a percent-off discount. Great for shopping, coupons, and retail price comparisons.

Free GPA calculator for weighted grade point average based on course grade points and credit hours. Useful for high school, college, and semester planning.

Use this split bill calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this sales tax calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this commission calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this markup calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this markdown calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this fuel cost calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this rent split calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this break even calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this rule of 72 calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this unit price calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this sleep calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this dog age calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this cat age calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this overtime pay calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this hourly to salary calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this salary to hourly calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Use this travel budget calculator to get a fast estimate with inputs designed for US and global English-speaking users.

Estimate how many gallons of paint you need based on wall area and paint coverage.

Estimate flooring area needed using room length and room width.

Estimate cubic yards of concrete needed for a slab using length, width, and depth.

Estimate cubic yards of mulch needed for a landscape bed.

Estimate the number of tiles needed using room area, tile area, and a waste factor.

Estimate wallpaper rolls needed from room perimeter, wall height, and roll coverage.

Estimate the number of fence panels needed from total fence length and panel width.

Estimate pool volume using length, width, and average depth.

Estimate appliance electricity cost from wattage, usage, days, and electricity rate.

Estimate road trip fuel cost using distance, fuel economy, and gas price.

Estimate babysitting cost from hourly rate and total hours.

Estimate the hourly freelance rate needed to hit a target income from billable hours.

Estimate total meal prep cost from servings and cost per serving.

Estimate a simple party budget using guest count, cost per guest, and venue cost.

Estimate moving cost using labor hours, hourly moving rate, and truck rental cost.

Split a utility bill evenly across roommates or household members.