All Calculators

Calculate required hot mix asphalt tonnage for any paving project.

Calculate asphalt volume in cubic yards, feet, or meters.

Convert asphalt volume to tons using standard density.

Calculate total project area. Sum multiple rectangular sections.

Calculate the total area of your paving project.

Convert asphalt thickness from inches to feet and meters.

Convert asphalt density between lb/ft³ and kg/m³.

Estimate costs for a new asphalt driveway.

Calculate costs for commercial paving projects.

Estimate budget for asphalt patching and repairs.

Calculate the cost of resurfacing your asphalt.

Estimate the cost of a fresh asphalt overlay.

Calculate asphalt milling and removal costs.

Calculate material costs based on tonnage.

Estimate asphalt for residential driveway projects.

Tonnage estimator for commercial parking lots.

Calculate asphalt needs for roads and lanes.

Estimate material for pothole and patch repairs.

Calculate tonnage for overlays and resurfacing.

General weight and tonnage estimator for paving.

Convert asphalt weight to volumetric yards.

Convert asphalt volume to commercial tons.

Calculate surface coverage from tonnage.

Convert paved area to required tonnage.

Convert pounds to decimal short tons.

Estimate the comprehensive cost of laying a new tarmac driveway.

Calculate required hot mix tarmac tonnage and volume.

Estimate costs for tarmac patching, resurfacing, or replacement.

Calculate MOT Type 1 aggregate needs for a structurally sound sub-base.

Calculate specialized tarmac surfacing costs for car parks, pathways, and private roads.

Calculate monthly payments for aircraft loans.

Calculate CD maturity value, interest earned, after-tax return, and CD ladder performance.

Calculate how extra mortgage payments, biweekly payments, and lump sums can reduce your mortgage term and save interest.

Calculate how much you can save for retirement with a 401k.

Calculate your 401k contributions.

Calculate your 401(k) loan monthly payment, full amortization schedule, and the real opportunity cost of borrowing from your retirement account. Follows US IRS §72(p) rules including the $50,000 cap and 5-year maximum term.

Compare Roth vs Traditional 401(k) contributions to see which one is better for you.

Calculate how much your employer will match your 401k contributions.

Calculate your Solo 401(k) contributions.

Calculate your 401(k) retirement savings goals and track your progress.

Calculate the penalty and tax implications of early 401(k) withdrawals.

Work out your overtime rate and gross weekly pay under the federal 40-hour rule, with double time and pay-period projections.

Recover the pre-tax price from a tax-inclusive total and a tax rate you supply, and see why subtracting the rate from the total gives the wrong answer.

Estimates your US Finance loan payments.

Estimate costs for tree removal services.

Calcualte Earned Runs Average (ERA) for pitchers.

Round numbers to the nearest whole number, decimal, or significant figure.

Run trigonometry, logarithms, powers, roots and factorials in degrees or radians, with brackets, π and e.

Estimate bitumen quantity, volume, weight, asphalt binder content, spray rate, and roofing rolls.

Estimate how much MOT Type 1 sub-base you need in tonnes and cubic metres.

Calculate AP Biology Exam Score.

Calculate AP Chemistry Exam Score.

Work out the tip on any bill, add sales tax, round the total up, or work backwards from a total you already paid.

Work out the tip for a haircut, colour, barber visit, manicure or pedicure, and split one tip between a stylist and an assistant.

Split a bill evenly, by what each person ordered, or in proportion to income, and work out who owes whom.

Pick a tip percentage and see what it means in dollars, check it against the published US tipping range, and scan a $5–$200 tip chart at 10%, 15%, 18%, 20% and 25%.

Work out the tip for a food, pizza or grocery delivery — kept separate from the delivery fee — with the published per-order minimum, plus takeout and pickup guidance.

Compare tipping on the pre-tax subtotal against tipping on the tax-inclusive total, see the difference in dollars, and check how an automatic gratuity interacts with sales tax.