Blog

A plain-English guide to converting an annual salary into a weekly paycheck, and back again, with worked examples.

A plain-English guide to turning an hourly wage into an annual salary figure, with worked examples for full-year and unpaid-time-off cases.

A plain-English guide to paying off debt by targeting the highest interest rate first to minimize total interest paid.

A plain-English guide to the debt snowball method: pay off your smallest balance first, then roll that payment into the next one.

A plain-English explanation of gross WPM, net WPM, and accuracy, with worked examples showing how errors change your typing score.

A plain-English guide to setting your emergency fund target, spotting your shortfall, and estimating how long it takes to close it.

A plain-English guide to how bonus withholding works, including the flat 22% federal rate and a worked example.

A plain-English look at how compound interest grows your money, with the formula and two worked examples.

A plain-English walkthrough of how extra mortgage payments cut your loan term and total interest, with worked examples.

A plain-English look at why loan payoff takes longer than expected, with a month-by-month formula and worked examples.

A plain-English look at why early mortgage payments are mostly interest and later ones are mostly principal.

A plain-English look at how compounding and the 4% rule turn monthly savings into a retirement income estimate.

A walkthrough of how lenders' debt-to-income guidelines translate into a maximum home price, including why property tax makes the math circular.

A plain-English walkthrough of the amortization formula behind personal loan payments, with two worked examples.

A plain-English guide to how probation end dates are calculated from a start date and a length in days or months.

A plain-English guide to how paid time off accrues per pay period, with worked examples for projecting your future balance.

A plain-English look at how reading time is estimated from word count and reading speed, with worked examples.

A plain-English guide to how sales commission and total pay are calculated, with worked examples.

A plain-English breakdown of how self-employment tax is calculated, including the 92.35% factor, the 15.3% rate, and the wage base cap.

A plain-English look at how the Pomodoro Technique splits work into timed focus sessions and breaks, with worked examples.

A plain-English guide to turning a raise, percentage or flat dollar amount, into your new pay and the true percentage increase.

Learn how to convert hourly, weekly, biweekly, semi-monthly, or monthly pay into an accurate yearly salary figure.

A plain-English guide to calculating employee attendance rate, with a simple formula and two worked examples.

A plain-English guide to calculating employee turnover rate using average headcount, with two worked examples.

Learn how to find the hours and minutes between two clock times, including overnight shifts that cross midnight.

A step-by-step guide to working out an employee's last working day from a resignation date and notice period, with worked examples.

A plain-English guide to adding sales tax to a price and working backward from a tax-included total to find the pre-tax price.

A plain-English guide to finding the exact days, hours, and minutes between two dates and times, with a worked example.

A plain-English guide to counting an employee's completed years of service from a start date and finding their next work anniversary.

A plain-English guide to turning clock-in and clock-out times into your real hours worked, minus unpaid breaks.

A step-by-step walk-through of how gross pay becomes a net paycheck, from pre-tax deductions to federal tax, Social Security, and Medicare.

A plain-English guide to counting weekdays between two dates, with worked examples and the caveat about holidays.

A practical guide to estimating project timelines using a team's realistic weekly capacity instead of a full 40-hour week per person.

A step-by-step walk-through of how gross income becomes a federal tax bill, from the standard deduction to the tax brackets.

A plain-English guide to solving for your savings timeline or your required monthly contribution using compound growth.

A plain-English guide to how 401(k) balances grow, covering the employer match formula and the future value math behind it.

A plain-English guide to adding up daily hours into weekly totals, regular hours, overtime, and estimated pay.

A plain-English look at the future-value math behind IRA growth, 2024 contribution limits, and traditional vs Roth tax treatment.

A plain-English walkthrough of the mortgage amortization formula, with worked examples showing how home price, down payment, rate, and term set your payment.

Why the same two dates can produce two different "correct" day counts, and how to know which one you actually need.

How marginal tax brackets actually work, why your whole income isn't taxed at your top rate, and how to find your true effective tax rate.

How Roth IRA growth math compares to a traditional IRA, and how the 2026 income phase-out determines how much you can actually contribute.

A plain-English guide to the real differences between salaried and hourly pay, plus how to convert one into the other.

A plain-English breakdown of the 50/30/20 budgeting rule, with the formula and two worked examples.

A plain-English breakdown of how to turn attendee count, pay rate, and meeting length into an actual dollar cost, with worked examples.

A plain-English guide to weekly, biweekly, semi-monthly, and monthly pay frequencies and how each one changes your pay dates.

How vacation accrual caps and year-end carryover rules limit your balance, with worked examples.

A plain-English guide to shift differential pay, how it's calculated, and how it interacts with overtime.

Salaried pay assumes a standard workweek, and working more than that quietly lowers your true effective hourly rate.

A plain-English guide to when double time kicks in, how it's calculated, and how it differs from standard overtime.

A plain-English look at the breakeven math behind refinancing and why a lower rate alone doesn't guarantee it's a good move.

The math behind why a percent-of-balance minimum payment takes years longer, and costs far more in interest, than a fixed payment of the same size.

A year has 52 weeks but only 12 months, so multiplying weekly pay by 4 undercounts what you actually earn per month.

Naive task time estimates leave out context-switching, which is why a list of quick tasks always seems to run long.

A plain-English walkthrough of how overtime pay works under the FLSA, with worked examples for time-and-a-half and double time.