Articles and guides
Practical articles for the decision in front of you.
These articles are written around real decisions people make with our tools. Where a topic needs an authoritative source, we link to the original organisation so you can read further.
How to calculate work hours in a week from a shift schedule
Turn daily start times, finish times, and unpaid breaks into a clear weekly work-hours estimate.
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GST on a discounted price: calculate the total with an example
See how a simple discount changes the taxable value, GST amount, and final price when tax is added separately.
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Percentage increase and decrease: calculate the change with examples
Use the original value as the reference point to calculate a percentage increase or decrease correctly.
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Home loan EMI checklist: five figures to compare before you apply
A practical checklist for comparing loan amount, tenure, rate, fees, and repayment terms before a home-loan decision.
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Unit conversion: choose the units before you do the maths
A practical guide to selecting the right measurement category, units, and level of precision.
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How to calculate time between two times
Learn how to calculate hours and minutes between two times, including overnight shifts, breaks, and total-minute results.
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Work hours calculator: subtract breaks and handle overnight shifts
A practical way to separate a full shift span from unpaid break time and estimate a weekly schedule.
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GST calculator: understand tax-added and tax-included prices
Use the right calculation for a taxable amount versus a total that already includes the GST rate you entered.
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Percentage calculator: three questions to set up correctly
A practical way to identify the percentage, the part, and the whole before you calculate.
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How to count days between two dates without an off-by-one mistake
Learn the difference between elapsed days and inclusive date counting before a timeline or deadline matters.
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Discount calculator: check the sale price and the saving
A clear way to calculate a sale price, compare offers, and avoid adding successive discounts incorrectly.
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Home loan EMI: compare tenure before you apply
Use a loan calculator to compare the monthly payment and total interest before deciding on a repayment period.
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EMI prepayment calculator: how much interest can you save by paying early?
See how a part-prepayment can change your estimated interest, remaining tenure, or monthly EMI before you ask the lender for a revised schedule.
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What a SIP calculator can and cannot tell you
Use return assumptions to plan a range of possible outcomes, not a guaranteed investment result.
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BMI explained: a starting point, not a diagnosis
Understand what a BMI calculation measures, where it is useful, and when to seek personalised medical advice.
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Age on a cut-off date: check eligibility carefully
A practical way to use an age calculator for forms, admissions, exams, and other date-based requirements.
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Fuel cost calculator: estimate your road-trip budget before you leave
Use distance, mileage, and fuel price to estimate the fuel part of a road-trip budget, then leave room for real-world driving conditions.
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How to split a bill fairly with tax and tip
A simple way to calculate an equal share of a group bill after the tax and tip are added clearly.
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Flat vs reducing interest rate: compare the real loan cost
Understand why identical quoted rates can create different EMI amounts and total interest under flat and reducing-balance methods.
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Working days calculator: count weekdays in a year, month, or date range
Learn how to count working days between dates and estimate weekdays in a year or month, excluding weekends and holidays.
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Hours to decimal conversion for timesheets and payroll
Learn how to convert hours and minutes to decimal hours for timesheets, payroll, invoices, and billing.
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Loan comparison calculator: compare EMI, interest, fees, and total cost
Use a loan comparison calculator to put two loan offers side by side and see how rate, tenure, and upfront fees affect monthly affordability and total cost.
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Salary hike calculator: turn an appraisal percentage into real amounts
Calculate the monthly increase and revised annual estimate, then check which salary component the appraisal percentage actually uses.
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Overtime pay calculator: estimate extra pay from hours and multiplier
Separate regular and overtime hours, apply the entered multiplier, and understand what the gross estimate leaves out.
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Notice period calculator: estimate your last working day
Use a notice period calculator to plan a resignation timeline with calendar or working days and decide whether the notice date counts as day one.
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Simple vs compound interest: compare growth with an example
See why reinvesting interest changes the final amount and how compounding frequency affects a long-term estimate.
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US mortgage payment calculator: estimate the full monthly cost
Learn how a US mortgage payment calculator combines principal, interest, property taxes, and homeowners insurance.
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US auto loan calculator: compare payment, APR, and total cost
Learn how to compare a US auto loan by amount financed, APR, term, monthly payment, and total interest.
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US overtime pay calculator: estimate time-and-a-half pay
Understand the common US time-and-a-half example, eligible hours, and what an overtime gross-pay estimate leaves out.
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