Why another calculator site?
Most calculator sites give you a single number and hide how they got it. CalcLedger takes the opposite approach: every tool prints its assumptions and underlying formula, then lays out the result as a ledger you can trace. If you wanted to, you could verify any row with a pencil.
Everything runs as plain JavaScript in your browser. Your balances, rates, and payments are never transmitted to a server, stored, or logged — close the tab and they're gone. That also makes the tools fast: results update on every keystroke.
What to try first
If you are trying to preserve old family photos, tapes, or film, start with the media archive planner and turn the whole collection into one time and storage estimate. For home projects, the concrete calculator converts a pour into bags and cubic yards. If debt is the priority, the loan payoff calculator shows exactly what an extra monthly payment changes.