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      <title>Deadweight Loss Calculator</title>
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      <description>Size the welfare triangle a per-unit tax destroys, alongside the tax revenue it actually raises.</description>
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      <pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Find the value sellers gain above their minimum acceptable price, from the market price and quantity sold.</description>
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      <pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Find the value buyers gain above what they pay, from the choke price, market price, and quantity sold.</description>
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      <pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Find comparative and absolute advantage between two producers and two goods, plus the mutually beneficial trade range.</description>
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      <description>Calculate the tip amount, total bill, and per-person share for restaurants, bars, delivery, and other services.</description>
      <category>Math &amp; Statistics</category>
      <pubDate>Sun, 16 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Total ROI on a rental property from cash flow, principal paydown, and appreciation, with annualized return and cash-on-cash.</description>
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      <pubDate>Sun, 16 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Find the freelance hourly or day rate needed to match a target employee salary, after tax, benefits, and unbillable time.</description>
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      <pubDate>Sun, 16 Aug 2026 00:00:00 GMT</pubDate>
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      <title>UAE Gratuity Calculator</title>
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      <description>Estimate UAE end-of-service gratuity from basic salary and years of service, using the 21/30-day MOHRE formula.</description>
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      <pubDate>Sun, 16 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Estimate India gratuity payable from last drawn salary and years of service, using the 15/26 formula.</description>
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      <pubDate>Sun, 16 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Compare ending net worth from paying extra toward a debt first against investing that money instead.</description>
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      <pubDate>Sat, 15 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Compare your existing debts against one new consolidation loan — monthly payment, payoff time, and total interest.</description>
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      <pubDate>Sat, 15 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Compare ending wealth from leasing a car against buying it — monthly payment, car equity, and invested savings.</description>
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      <pubDate>Sat, 15 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Compare ending wealth from buying a home against renting and investing the difference, over the years you plan to stay.</description>
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      <pubDate>Sat, 15 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate fence posts, rails, and pickets from length, height, and spacing, or estimate wood, vinyl, or chain-link materials, cost, and stain needed.</description>
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      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate decking boards, joists, and screws or hidden clips needed for any deck — in feet/inches or metres/millimetres — plus an optional material cost estimate.</description>
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      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate roof area, pitch, and roofing squares from a footprint, or estimate shingle bundles, metal sheets and weight, or flat-membrane materials and cost.</description>
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      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Compare landed cost under DAP and DDP Incoterms — what the buyer pays upfront vs. at delivery, and the DDP handling fee.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Estimate customs duty, tax, and total landed cost for any country, or India’s Basic Customs Duty, Social Welfare Surcharge, and IGST cascade.</description>
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      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate insulation depth and quantity — loose-fill bags, batt/roll/board packages, or spray-foam board-feet — plus R-value achieved and an optional cost estimate.</description>
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      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Size gutters and downspouts from roof area and rainfall intensity (SMACNA, AS/NZS 3500.3, or BS EN 12056-3), or estimate materials and cost from a gutter run length.</description>
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      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Estimate how many solar panels fit your roof, the system size in kW, yearly generation, and cost, incentive, and payback for India, the USA, the UK, or any country.</description>
      <category>Home &amp; Energy</category>
      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Count days between two dates, add or subtract days, or count business days excluding weekends and holidays, with a full calendar breakdown.</description>
      <category>Time &amp; Date</category>
      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Work out what percentage one span of time is of another, or the percentage increase or decrease between an old and a new duration.</description>
      <category>Time &amp; Date</category>
      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate exact age in years, months, and days from a birth date, with total days lived, day born, a next-birthday countdown, and Excel/SQL/code formula examples.</description>
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      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate hours worked across a week, two weeks, or a month from clock-in and clock-out times, with lunch-break deduction, overtime, and an Excel export.</description>
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      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Convert a date and time between EST, IST, GMT, UTC, CET, PST, or any IANA time zone, with live daylight-saving handling and a multi-zone world clock view.</description>
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      <pubDate>Wed, 05 Aug 2026 00:00:00 GMT</pubDate>
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      <description>Calculate a daily calorie deficit and an adaptive weight-loss timeline range from your TDEE, with a safety-floor warning and a scenario comparison.</description>
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      <pubDate>Tue, 21 Jul 2026 00:00:00 GMT</pubDate>
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      <description>Estimate BMR, TDEE and daily calorie needs with the Mifflin-St Jeor equation, a maintenance range, and calorie scenarios for losing, maintaining, or gaining weight.</description>
      <category>Health</category>
      <pubDate>Tue, 21 Jul 2026 00:00:00 GMT</pubDate>
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      <description>Model per-attempt AI cost, retries, tool calls, caching, and human review to find the real cost per successful task.</description>
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      <pubDate>Thu, 16 Jul 2026 00:00:00 GMT</pubDate>
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      <description>Calculate BMI in metric or imperial units, see your adult category and healthy-weight range, with clear limitations and a separate under-18 result.</description>
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      <pubDate>Tue, 14 Jul 2026 00:00:00 GMT</pubDate>
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      <description>Trigonometry, logarithms, powers, roots, and factorials with correct order of operations, memory registers, history, and keyboard entry.</description>
      <category>Math &amp; Statistics</category>
      <pubDate>Mon, 15 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Solve equilibrium price and quantity from linear demand and supply, with surplus, a shift simulator, and tax incidence.</description>
      <category>Economics</category>
      <pubDate>Sun, 14 Jun 2026 00:00:00 GMT</pubDate>
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      <title>Marginal Utility Calculator</title>
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      <description>Turn a utility table into total and marginal utility and utility per dollar, and find the satiation point.</description>
      <category>Economics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Compare two choices to see net value, opportunity cost, explicit vs implicit costs, and risk-adjusted scenarios.</description>
      <category>Economics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <title>Diminishing Returns Calculator</title>
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      <description>Turn input-output data into total, marginal, and average product and find the point of diminishing returns.</description>
      <category>Economics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Sample and population standard deviation, plus variance, mean, median, quartiles, z-scores, outliers, and confidence intervals.</description>
      <category>Math &amp; Statistics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Work out percentage increase or decrease, reverse change, loss recovery, percentage points, multi-period change, and CAGR.</description>
      <category>Math &amp; Statistics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Solve X% of Y, what percent X is of Y, reverse percentage, increase/decrease, discounts, and tax, tip, or commission.</description>
      <category>Math &amp; Statistics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Measure price elasticity of demand (midpoint and simple PED) and test how a price change affects revenue and profit.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Calculate CAC, discounted LTV, the LTV:CAC ratio, and CAC payback, with channel-by-channel decisions and scenarios.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Score five layers of your financial foundation — survival, safety, support, growth, and freedom — with a stress test and what-if simulator.</description>
      <category>Economics</category>
      <pubDate>Sat, 13 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Work out break-even and target ROAS from your real margins, plus max CAC, break-even MER, and ad budgets.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Fri, 12 Jun 2026 00:00:00 GMT</pubDate>
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      <description>See net profit per order after product costs, fees, shipping, ads, and returns, with break-even price and ROAS.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Fri, 12 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Find units and revenue break-even, contribution margin, target profit, and margin of safety, with sensitivity tables and a chart.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Thu, 11 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Price from cost across nine modes — markup, target margin, reverse cost ceilings, and ecommerce landed cost after fees.</description>
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      <pubDate>Thu, 11 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Work out gross, contribution, operating, and net margin, with target pricing, break-even, scenarios, and SKU comparison.</description>
      <category>Business &amp; Ecommerce</category>
      <pubDate>Thu, 11 Jun 2026 00:00:00 GMT</pubDate>
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      <description>Plan up to 20 cards with issuer-style minimums, promo APRs, five payoff orders, and a balance-transfer scenario.</description>
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      <pubDate>Thu, 11 Jun 2026 00:00:00 GMT</pubDate>
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