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Quick Calculators

Guides & Insights

Actionable insights, tutorials, and deep dives into the math and science behind our most popular calculators.

3 min read

VBAC Uterine Rupture Risk: What 0.5% Really Means

Uterine rupture is the number people fixate on with VBAC. Here's what the percentage really means, and how it compares to everyday risks.

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3 min read

VBAC vs. Repeat C-Section: How to Weigh Your Options

A statistics-based look at the real risks and benefits of VBAC vs. a repeat cesarean, to help you have an informed talk with your provider.

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2 min read

How Much Pasta Should You Cook Per Person?

Stop guessing your pasta portions. Learn the standard dry-to-cooked pasta ratios and how to measure long and short pasta perfectly every time.

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3 min read

Understanding Foreign Exchange Rates Before You Travel

Don't get scammed at the airport kiosk. Learn how foreign exchange rates actually work and the cheapest way to get local currency abroad.

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2 min read

How to Calculate the Exact Amount of Alcohol for a Wedding

Planning a wedding or large party? Use professional catering formulas to calculate exactly how much beer, wine, and liquor you need to buy.

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3 min read

How to Calculate Your Hourly Rate as a Consultant

Are you undercharging your freelance clients? Learn the formula to accurately calculate your consulting hourly rate to cover taxes, overhead, and profit.

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2 min read

How to Calculate the Exact Gas Cost of Your Next Road Trip

Planning a road trip? Learn how to calculate exactly how much fuel you'll need and what it will cost before you hit the highway.

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2 min read

How to Calculate Your Running Pace for Your Next Race

Whether you are running a 5K or a marathon, pacing is everything. Learn how to calculate your exact running pace per mile or kilometer.

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3 min read

How Many Business Days Are in a Year?

Planning annual goals or calculating an employee's salary? Find out exactly how many business days are in a standard year and a leap year.

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