Standard & Scientific Math
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Estimate your tax refund or balance due using income, filing status, deductions, credits, withholding and estimated payments.
Calculate elapsed time between two dates with total weeks, days, hours, minutes, weekdays and weekends.
Calculate restaurant tips, split bills, total tip, total bill and per-person amounts in seconds.
Estimate how much of your bonus you actually take home after federal or main withholding, state tax, and other payroll deductions.
Convert your hourly wage to annual, monthly, and daily salary, and compare it with full-time equivalent earnings.
Calculate sales tax, VAT, or GST by adding it to a net price, or reverse-calculate to find the pre-tax base price.