# OneEquals

> Free unit converters & printable charts


## Posts

- [How Much Concrete Do I Need for a Slab?](https://oneequals.com/guides/how-much-concrete-for-a-slab/): Work out concrete for a slab in cubic yards and bags: length × width × thickness, with worked examples, waste allowance and 40, 60 and 80 lb bag counts.
- [How to Calculate Overtime Pay (With Examples)](https://oneequals.com/guides/how-to-calculate-overtime/): How US overtime works: 1.5 times the regular rate for hours over 40 a week, with worked examples, decimal hours and the states that add daily overtime.
- [Dry vs Liquid Measuring Cups: What's the Difference?](https://oneequals.com/guides/dry-vs-liquid-measuring-cups/): Dry and liquid measuring cups hold the same volume, but you fill and read them differently. When to use each, and why weighing flour beats both.
- [How to Measure Your Foot for Shoe Size](https://oneequals.com/guides/how-to-measure-foot-for-shoe-size/): Measure your foot length at home in five minutes with paper and a ruler, then find your US, UK, EU or Japanese shoe size, for adults and kids.
- [How to Measure Ring Size at Home (3 Easy Ways)](https://oneequals.com/guides/how-to-measure-ring-size/): Measure your ring size at home with a paper strip, a ring you already own or a printable sizer, then read your US, UK or EU size from the chart.

## Pages

- [Terms of Use](https://oneequals.com/terms/): OneEquals is free to use. By using the site you agree to these terms.
- [Contact](https://oneequals.com/contact/): Questions, a conversion we're missing, or a mistake to report? Email us at .
- [How We Calculate](https://oneequals.com/how-we-calculate/): Every converter, chart and answer on OneEquals is calculated from exact, published definitions. Nothing is copied from other websites.
- [About OneEquals](https://oneequals.com/about/): OneEquals is a free set of unit converters and printable charts, built by a small team in Bulgaria.
- [Guides](https://oneequals.com/guides/)
- [Home](https://oneequals.com/)
- [Privacy Policy](https://oneequals.com/privacy-policy/): This policy explains what information is processed when you use OneEquals ("the site"). The site is operated by . Contact: .


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