All calculators & tools

Work out the hourly rate to charge a client so that target margin is met after overhead and non-billable time.

Count words, characters, sentences and paragraphs.

Calculate exact age in years, months, days, and total elapsed days.

Calculate a sale price, savings, and optional additional discount.

Format JSON into clean, readable indentation locally.

Calculate percentages, proportions, and percentage change with a clear formula breakdown.

Estimate paint containers from room dimensions and coverage.

Calculate new pay and the value of a percentage raise.

Find the true hourly cost of an employee once benefits, payroll cost and overhead are included.

Find the calendar and total-day difference between two dates.

Count Unicode characters, bytes, lines and words.

Check JSON syntax and see clear parsing errors locally.

Size a software application from its data and transaction functions before estimating effort or cost.

Calculate a value after a percentage increase and see the exact increase amount.

Estimate flooring area and full boxes.

Calculate a tip, total bill, split per person, and common tip comparisons.

Estimate regular and overtime gross pay.

Convert common metric and imperial lengths.

Convert length and weight between metric and imperial units instantly.

Calculate a value after a percentage decrease and see the exact reduction.

Estimate development effort, schedule and average team size for a software project of a known size.

Add sales tax or find the pre-tax price from a tax-inclusive total.

Remove optional whitespace from valid JSON.

Calculate body mass index from height and weight, with the healthy range shown.

Convert metric and imperial weights.

Calculate commission and total gross earnings.

Count sentences and average words per sentence.

Estimate concrete volume and bag quantity.

Calculate elapsed hours and minutes between two times, including overnight.

Estimate reading time at a chosen reading speed.

Find the arithmetic mean, sum, count, minimum, and maximum of a number list.

Convert hourly pay to annual, monthly, weekly, and daily gross income.

Express cloud spend as a cost per customer, per transaction or per other business unit.

Estimate percentage and fixed gross bonus amounts.

Count working days between two dates.

Convert Celsius, Fahrenheit, and Kelvin.

Estimate roof area, squares, and bundles.

Encode Unicode text as standard Base64.

Convert text among common writing and code cases.

Estimate tile area and full boxes.

Decode valid Base64 into Unicode text.

Convert common speed units.

Total hours across multiple work shifts.

Simplify ratios and calculate equivalent ratios and decimal values.

Convert annual salary to hourly, daily, weekly, and monthly gross pay.

Calculate weekly, monthly, and annual work hours.

Set the rate used to apply manufacturing overhead to jobs for the coming period.

Estimate compound growth with contributions, scenarios, a chart, and yearly table.

See live time remaining or elapsed.

Remove repeated lines while preserving their first occurrence.

Estimate gravel volume and bag quantity.

Percent-encode text for use in a URL component.

Add, subtract, multiply, or divide fractions and reduce the result.

Find the pace of production needed to meet customer demand.

Convert metric and imperial area units.

Compare two offers across pay, benefits, PTO, equity, and work costs.

Convert local times between time zones.

Estimate the annual value of a complete compensation package.

Convert metric, US, and imperial volumes.

Evaluate scientific expressions with degree or radian angles.

Measure how much of planned production time is truly productive.

Estimate mulch volume and bag quantity.

Clean pasted whitespace, blank lines and invisible characters.

Decode percent-encoded URL text safely.

Estimate room cooling capacity in BTU per hour.

Express a defect rate on a scale that can be compared across processes of different complexity.

Create a lowercase URL-safe slug from a title.

Calculate population or sample standard deviation.

Convert decimal and binary data units.

Generate one or more cryptographically random UUID v4 values.

Estimate the gross salary value of paid time off.

Add or subtract calendar time from a date.

Judge whether a process fits inside its specification limits and whether it is centred.

Find the weekday for any valid date.

Estimate annual commuting costs, distance, and time.

Convert Unix timestamps and readable dates.

Compare two texts and identify added or removed lines.

Calculate event, complement, combined, and binomial probabilities.

Calculate rectangular area with quantity and deductions.

Estimate annual savings from working remotely.

Calculate measurements for common 2D and 3D shapes.

Calculate a credit-weighted GPA from multiple courses.

Decode JWT headers and payloads locally without verification.

Size a pump and estimate the electrical power it will draw at a given duty point.

Measure how much value the project has earned for each unit of cost spent.

Find the least common multiple of whole numbers.

Calculate weighted grades and target scenarios.

Test JavaScript regular expressions and capture groups.

Estimate sleep duration and cycle times.

Find the greatest common factor of whole numbers.

Measure how much of the planned work the project has actually completed.

Raise a base to positive, negative, or decimal powers.

Forecast the total cost of the project from performance so far.

Estimate trip fuel use and cost in US or metric units.

Find the sales volume at which total revenue covers total cost.

Calculate square roots and other whole-number roots.

See how much each sale contributes towards fixed costs and profit.

Estimate mortgage payments, total interest, costs, and an amortization schedule.

Calculate loan payments, interest, repayment, and payoff schedule.

Estimate a vehicle loan payment and total financing cost.

Calculate simple interest and final amount over time.

Project investment growth with recurring contributions.

Project savings growth, deposits, and earned interest.

Calculate total and annualized return on investment.

Estimate debt payoff time, interest, and extra-payment savings.

Find the exact gap between two times, including overnight and multi-day gaps.

Convert Unix and Linux epoch time to a date, and back again.

Work out what each customer, order or account costs to serve.

Measure how many hours each delivered function point actually took.

Express what a delivery cost in money per unit of functional size.

Turn a function point count into effort using your own delivery rate.

Cost a COCOMO II effort estimate at your own person-month cost.

Estimate calendar time with the published COCOMO II schedule equation.

Find the average team size an effort and schedule imply.

Cost a build including tools, overhead and a contingency reserve.

Turn effort into a schedule, by the published model or by your staffing.

Estimate a year of maintenance from how much of the system changes.

Work out what fixing a set of defects costs to fix, retest and release.

Value technical debt as remediation cost and annual carrying cost.

Size software in thousands of source lines, counted or converted.

Build a total project cost from labour, materials, travel, overhead and contingency.

One hourly rate for a mixed team, weighted by hours.

Total annual employer cost of an employee, and the cost per paid hour.

Work back from a client bill rate to the pay rate, with margin and markup kept apart.

Scheduled hours less leave, holidays and non-billable work.

Billable hours as a share of available hours.

How much of the standard value of work was actually billed.

Revenue per hour worked, not just per hour billed.

Premium rate and cost for work outside standard hours.

Cost of a standby rota and the call-outs that come with it.

Turn a loaded hourly cost into a published rate, and see the margin after discount.

Add up what the people on a project cost, role by role.

See what share of a project's revenue survives its delivery cost.

See what a project leaves after direct, overhead and administrative cost.

Turn an estimated project cost into a fixed fee at your margin or markup.

Quote an hourly engagement with expenses and materials shown separately.

Price a monthly retainer and the rate for hours beyond it.

Price a per-device or per-user service from its cost to serve.

Work out the monthly cost of running a managed service, per unit served.

Price a support contract from ticket volume and handling time.

Cost the coverage a service level agreement promises.

Find the blended hourly cost of a junior, mid and senior delivery mix.