Disclaimer

The calculators and articles on Dayob are provided for general information, education and planning. They are designed to be accurate, but results depend on the values you enter and on stated assumptions, and real-world conditions vary.

Construction and materials

Material estimates (concrete, gravel, soil, flooring) are approximations. Densities, bag yields and coverage vary by product and supplier. Structural work such as foundations, footings and retaining walls should follow local building codes and, where required, a licensed engineer's design.

Finance

CD and 401(k) projections are illustrations, not guarantees or investment advice. Investment returns are uncertain, and taxes and fees affect results. Contribution limits are those published by the IRS for the year shown.

Education and test scores

AP score estimates use published section weights and estimated cutoffs; the College Board sets actual conversions each year. AP is a registered trademark of the College Board, which is not affiliated with this site. Final-grade results depend on your instructor's grading policy.

Fitness and assessment

PFT scores are an unofficial estimate based on published standards; your unit's official score prevails. Chronological age results should be checked against the instructions in your assessment's manual. Consult a physician before starting a new training program.

Science

Molar masses use standard atomic weights rounded for general use and are not suitable for high-precision isotopic work.

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