Free calculators with the working shown
Calcledge is a small site for two money questions that arrive with a stack of paperwork: what a severance offer adds up to, and what a home solar system might cost and save. The tools are free. There is no account. Each one prints the formula with your numbers in it, not only a final box.
The severance calculator takes salary, years of service, and weeks of pay per year. Salary can be annual or monthly. Years can include a decimal. The result is gross severance, weekly pay, monthly pay, and that total as weeks and months of pay. Notice weeks and a bonus stay on separate lines. If you type a tax rate, a take-home line appears. That line is an estimate you defined. It is not a tax table.
There is no US federal law that sets severance at one or two weeks per year. The Department of Labor says the Fair Labor Standards Act does not require severance pay at all. The two-week default in the form is a negotiating custom, and the field says so. Country notes quote a rule only when this site has a source. If a figure is still being sourced, the page says that and does not fill in a number.
The solar calculator takes monthly electricity use, a production factor, a cost per watt, and an incentive percentage. You can start from a bill instead of kWh when you also enter a rate. The result shows annual use, system size, gross cost, the incentive, net cost, yearly savings, payback, and a 25-year figure. If yearly savings are zero, payback says not available instead of dividing by zero.
The state menu stays off. Residential rates, state incentives, and state production factors are not published until each one has a citation. The federal residential credit is a sourced exception: the IRS describes 30 percent for qualified property installed from 2022 through December 31, 2025, and says the credit is not available for property placed in service after that date. A new 2026 installation does not get that 30 percent. Type another incentive only if you have one.
The arithmetic lives in Python modules that do not import Django. The browser runs the same steps after the page loads. Submitting the form also works with scripts off, because a worked example is already in the HTML. Money is rounded half up to the cent, and only after the multiplication. Rounding a middle step and multiplying again will not match.
Every legal, tax, incentive, or benchmark figure Calcledge prints has a source, a source date, and the date we last checked it. An unverified entry is not rendered and is not listed in the sitemap. The formulas, the source list, and the review cadence are on how we calculate. Use the results as estimates. They are not legal, tax, or engineering advice.
