59+ Online Calculators & Tools in One Collection

Use this AP Biology score calculator to combine multiple-choice and free-response practice points into a weighted composite and predicted AP Bio score.

Use this AP Calc AB score calculator to combine multiple-choice and free-response practice points into a weighted composite and AP score prediction.

Try this AP Calc BC score calculator to combine multiple-choice and free-response practice points into a weighted composite and predicted BC score.

Try this AP Chemistry score calculator to combine 60 MCQs and free-response rubric points into a weighted composite and predicted AP Chem score.

Try this AP Psychology score calculator to combine 75 MCQs and two free-response rubric scores into a weighted composite and predicted AP Psych score.

Try this AP score calculator to combine multiple-choice and free-response results, view a weighted composite, and estimate an AP score from 1 to 5.

Use this AP Statistics score calculator for the revised format to combine MCQ and FRQ points into a weighted composite and predicted AP Stats score.

Use this AP World History score calculator to combine MCQ, SAQ, DBQ, and LEQ practice results into a weighted composite and AP score prediction.

Try this AP Lang score calculator to combine multiple-choice, synthesis, rhetorical analysis, and argument scores into a weighted AP score estimate.

Use this APUSH score calculator to combine MCQ, SAQ, DBQ, and LEQ practice points into a weighted composite and predicted AP U.S. History score.

Use this GPA calculator to estimate weighted, unweighted, semester, or cumulative GPA from your letter grades, course credits, and class levels.

Use this free grade calculator to calculate weighted grades, total points, or the score you need on your final exam to reach your target grade.

Estimate your LSAC GPA with the official 0.00–4.33 grade conversion scale. Add courses and credits for a live law school GPA estimate.

Convert an April 2022 LSAT raw score to its exact 120–180 scaled score using LSAC’s disclosed Form LTZB03 conversion table.

Decompose a linear-over-quadratic rational expression into real partial fractions. Enter coefficients to identify factors and verify the result.

Try this SAT practice score tracker to record dated custom section results, compare attempts, and highlight your best session total.

Try a TI-84 style calculator for basic arithmetic, decimals, percentages, and sign changes. No graphing or emulator features are included.

Try this dynasty trade calculator with your own player and pick values. Compare both totals and see whether their difference falls within 10%.

Use this Palworld breeding calculator for 1.0 to predict offspring, find parent combinations, and plan the shortest breeding path from Pals you own.

Try this asphalt calculator to estimate paving volume, weight, required tons, and optional material cost from project dimensions and asphalt density.

Calculate cinder blocks for a wall from length, height, openings, block size, and waste. Get net area and a rounded purchase quantity.

Try this concrete calculator to estimate cubic yards, cubic feet, ready-mix volume, bag quantities, and optional material cost for a slab or pad.

Try this gravel calculator to estimate cubic yards, weight, tons, and optional material cost for driveways, paths, drainage, or landscaping.

Calculate total linear feet from multiple lengths and quantities. Add feet and inches per item to get totals in feet, inches, and metres.

Explore this material calculator hub to estimate asphalt, sand, gravel, topsoil, or concrete quantities for construction and landscaping projects.

Estimate rebar for a rectangular slab grid from dimensions, spacing, cover, layers, and waste. Get directional bar counts and purchase length.

Try this sand calculator to estimate cubic yards, cubic feet, weight, tons, and optional material cost for landscaping, play areas, or pools.

Calculate rectangular or vertical cylindrical tank capacity from inside dimensions. Get total and filled volume in gallons, litres, and cubic units.

Try this topsoil calculator to estimate cubic yards, volume, weight, tons, and optional soil cost for lawns, raised areas, gardens, or landscaping.

Convert watts to amps for DC, single-phase AC, or balanced three-phase AC. Enter power, voltage, and power factor for a live current calculation.

Use this body type calculator to compare bust or chest, waist, and hip measurements for a transparent clothing-style body shape estimate.

Use this FFMI calculator with body fat to estimate fat-free mass index, lean mass, and height-normalized FFMI in metric or US units.

Use this puppy weight calculator to create a rough adult-weight range from current age, weight, and expected size, with assumptions shown clearly.

Try this 2026 Arkansas paycheck calculator to estimate federal withholding, FICA, Arkansas wage tax, deductions, and take-home pay.

Calculate a banker's acceptance commission from the principal, term, and annual rate. Try the BAC commission calculator for a clear fee estimate.

Try this CD calculator to estimate interest earned and maturity value from your deposit, term, annual rate, and compounding frequency.

Explore a simplified BAH calculator demo by pay grade and dependency status, then verify your actual housing allowance with official DoD rates.

Try this CD interest calculator to estimate maturity value, interest earned, and an entered early-withdrawal penalty from a quoted APY.

Try this 2026 Illinois paycheck calculator to estimate federal withholding, FICA, 4.95% Illinois tax, deductions, and take-home pay.

Try this 2026 Indiana paycheck calculator to estimate federal withholding, FICA, 2.95% state tax, an entered county rate, and take-home pay.

Try this 2026 Michigan paycheck calculator to estimate federal withholding, FICA, 4.25% state withholding, deductions, and take-home pay.

Try this 2026 Maryland paycheck calculator to estimate federal withholding, FICA, state and local income tax, deductions, and take-home pay.

Try this 2026 Missouri paycheck calculator to estimate federal withholding, FICA, official state brackets, deductions, and take-home pay.

Try this money longevity calculator to estimate how long savings may last with monthly spending, income, return, inflation, and cash-flow timing.

Try this 2026 paycheck calculator to estimate federal withholding, FICA, selected state tax, deductions, and take-home pay per period.

Try this 2026 Virginia paycheck calculator to estimate federal withholding, FICA, progressive Virginia tax, deductions, and take-home pay.

Try this 2026 Washington paycheck calculator to estimate federal withholding, FICA, payroll deductions, and take-home pay with no wage income tax.