Concrete Slab Cost Calculator
Estimate the concrete volume and total cost of a slab, including waste, delivery and labor.
Every calculation. One place.
Free Online Calculators for Everyday Life
Free, accurate, and easy-to-use calculators for everyday questions, finances, construction, math, fitness, and more.
Popular calculators
A hand-picked set of our most broadly useful tools.
Square Feet Calculator
Total the square footage of rectangles, triangles and circles, with cut-outs and metric conversion.
Tile Calculator
Work out how many tiles and boxes you need for a floor or wall, including grout joints and waste.
Monthly Car Payment Calculator
Car loan payment with down payment, trade-in, sales tax, fees and a full amortization schedule.
Gravel Calculator
Convert the area and depth of a driveway, path or base into cubic yards and tons of gravel.
Hours Worked Calculator
Add up work shifts with breaks and overnight hours, in hours:minutes and decimal hours.
Cubic Yard Calculator
Convert length, width and depth in any units to cubic yards, cubic feet and cubic meters.
Maintenance Calories Calculator
Estimate BMR and daily maintenance calories (TDEE) with Mifflin-St Jeor, Harris-Benedict or Katch-McArdle.
Browse by category
Find the right tool by topic.
Construction Calculators
Estimate concrete, gravel, tile, lumber, block and rebar quantities for your project.
15 calculatorsFinance Calculators
Loan and car payments, amortization, retirement withdrawals and trip costs.
5 calculatorsTime & Date Calculators
Hours worked, decimal time for timesheets, and elapsed time between dates.
3 calculatorsHealth & Fitness Calculators
Race pace, walking calories and maintenance calories using published equations.
3 calculatorsFeatured calculators
In-depth tools with schedules, charts and step-by-step working.
Concrete Slab Cost Calculator
Estimate concrete slab cost from length, width and thickness. Get cubic feet, cubic yards and a total cost using your own price, delivery and labor.
Monthly Car Payment Calculator
Calculate your monthly car payment including down payment, trade-in, amount owed, sales tax and fees. See total interest and a full amortization schedule.
Rafter Calculator
Calculate common rafter length from building span or run and roof pitch, rise or angle. Includes ridge allowance, eave overhang, cut angles and a diagram.
Recently added
The newest calculators on CalcDistrict.
Binomial Distribution Calculator
Exact and cumulative binomial probabilities, mean, variance and a distribution chart.
Board and Batten Calculator
Number of battens, even spacing, boards to buy and backing panels for a board and batten wall.
Concrete Block Calculator
Number of concrete masonry units (CMU) for a wall, by courses, with openings and waste.
Concrete Footing Calculator
Concrete volume and bag count for pad footings, round piers and continuous strip footings.
Deck Calculator
Decking boards, linear footage and screws for a rectangular deck surface.
Elapsed Time Calculator
Exact time between two dates and times in years, months, days, hours, minutes and seconds.
Gas Cost Calculator
Fuel needed and cost for a trip from distance, fuel economy and price, in miles or kilometers.
How Long Will My Money Last Calculator
Find how many years your savings will last given spending, other income, growth and inflation.
All calculators
Every tool on CalcDistrict, by category.
Construction 15
- Board and Batten Calculator
- Concrete Block Calculator
- Concrete Footing Calculator
- Concrete Slab Cost Calculator
- Cubic Yard Calculator
- Deck Calculator
- Gravel Calculator
- Pea Gravel Calculator
- Rafter Calculator
- Rebar Calculator
- River Rock Calculator
- Square Feet Calculator
- Stone Calculator
- Stud Calculator
- Tile Calculator
Finance 5
Math 4
Why CalcDistrict
A modern utility for everyday numbers.
Tested formulas
Every calculator is checked against independently worked answers before it is published.
Formulas shown
Each page explains the formula, its assumptions and a worked example, so you can verify the result.
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Calculations run in your browser. We don't ask for an account or store what you type.
Clean and simple
Clear labels, sensible units and results that update as you type, on any device.
Modern digital utility for calculators across construction, finance, health, and more. About us