Landscape Rock Calculator by Square Feet: Tons & Cost
Estimate how much landscape rock, gravel, or stone you need based on square footage, depth, and rock type, including weight in tons and material cost.
Pea Gravel Calculator: Estimate Volume, Weight & Cost
Calculate how much pea gravel you need for driveways, walkways, and garden beds, including volume, weight, bag count, and estimated cost.
Decomposed Granite Calculator: Volume, Weight & Cost
Estimate decomposed granite volume in cubic yards and cubic meters, weight in tons and tonnes, and total material cost for pathways, patios, and driveway base layers.
Crushed Concrete Calculator: Volume, Weight & Cost
Estimate the cubic yards, tons, and material cost of crushed concrete needed for a driveway, base layer, or fill project based on your measured area and depth.
Concrete Curb and Gutter Calculator: Volume & Cost
Estimate concrete volume and material cost for a curb-and-gutter run from curb height, widths, gutter dimensions, length, and waste allowance.
Concrete Pier Calculator: Volume, Bags & Cost Estimator
Calculate concrete volume, bag count, and material cost for round or square piers with adjustable depth, quantity, and waste allowance.
Ceiling Tile Calculator: Estimate Tiles, Boxes & Cost
Calculate how many drop-ceiling tiles, boxes, and total material cost you need for a rectangular room, with an adjustable waste allowance.
Triangle Calculator — Solve Any Triangle Instantly
Whether you’re a student working through geometry homework, an engineer calculating structural angles, or a DIYer trying to figure out a roof pitch — our free Triangle Calculator solves any triangle in seconds. Enter any combination of sides and angles (at least one side required), and the calculator gives you all remaining sides, all angles, […]
GPA Calculator — Find Your Grade Point Average Instantly
Whether you just finished finals week or you’re planning ahead for next semester, knowing your GPA matters. It affects scholarships, athletic eligibility, graduate school admissions, job applications, and honor roll status. Our free GPA Calculator makes it simple — enter your courses, credits, and grades, and get your GPA in seconds. No spreadsheets. No complicated […]
Date Calculator — Find Days Between Dates or Add & Subtract Days Instantly
Need to know how many days until your vacation? Want to figure out what date falls 90 days from today? Trying to calculate business days between two deadlines? Our free Date Calculator handles all of it — instantly, accurately, and without any sign-up. Whether you’re managing a project deadline, planning a countdown, handling legal timelines, […]