Atom Calculator

Calculate the activation energy of a reaction using the Arrhenius equation with rate constants at two different temperatures.

Estimate the activity coefficient of an ion in solution using the Debye-Hückel equation, which accounts for ionic interactions.

Determine the actual yield of a chemical reaction based on your experimental results and compare it to the theoretical yield.

Calculate the Air-Fuel Ratio (AFR) or Lambda value for combustion processes, essential for engine tuning.

Use the alligation method to calculate the correct proportions for mixing two solutions of different concentrations to achieve a desired intermediate concentration.

Use the Arrhenius equation to calculate the rate constant, activation energy, or temperature of a chemical reaction.

Calculate the atom economy of a chemical reaction to measure its efficiency and green chemistry principles.

Calculate the weighted average atomic mass of an element from its isotopes.

Estimate your self-employment taxes as a freelancer or independent contractor. Helps you plan for quarterly tax payments and avoid surprises.

Project the growth of your 401(k) retirement savings over time. See how contributions, employer match, and investment returns can impact your nest egg.

Project the future value of a 529 college savings plan. See how your contributions can grow over time to help fund educational expenses.

Quickly find the exact date that was 90 days before today or any other specified date. Useful for tracking deadlines and timelines.

Convert your A1c level to an Estimated Average Glucose (eAG) number. A vital tool for individuals with diabetes to understand their blood sugar control.

Calculate the Alcohol By Volume (ABV) of your homebrew beer, wine, or cider by providing the original and final gravity readings.

Convert between units of angular acceleration.

Convert between units of acceleration like m/s² and g-force.