YOUR QUESTION. YOUR OWN TOOL.
From a thought
to a useful calculator.
Describe what you need. Shape the inputs. See the formula. Then check it with an answer you already know.
A lot more clarity.Editable · Portable · Reviewable
Start with what you want to work out.
A guided builder turns familiar calculation patterns into an editable draft.
Supported descriptions in Arabic, Japanese, Spanish, German, Portuguese, and French
These complete descriptions use tested templates. Field labels and review guidance are currently in English.
Descriptions must fully match a supported English pattern. Mixed or unclear requests need clarification. No language model is connected. Input labels can use any language; typed formulas use fixed identifiers. The builder does not infer tax rules or guarantee a formula matches your intent.
Start with a description, a template, or the editable project example below.
Make it yours.
Every field and every operation is visible.
Inputs
The formula
UCALC / 1Use input identifiers, + − * /, parentheses, min, max, or abs. Percent inputs use rate / 100. No executable JavaScript.
One currency throughout. Changing the code relabels values; it does not convert them. Rounding applies to the final answer only. The Items unit permits fractional results; whole-number checkboxes constrain inputs only.
Say what the formula assumes.
Try it. Then check it.
Your own calculator, taking shape.
Project estimate
A calculator you can inspect, test, and make your own.
half-even · 2 decimal places
Bring an answer you already know.
Use the preview inputs above for a simple example you have checked independently. Enter the answer you expect, without copying the preview’s result.
A passing example does not prove every input or business rule is correct. Editing the definition resets the personal review. This label is never a professional or legal certification.
A tool you can come back to.
Save the definition on this device or export it as portable JSON.
Exports include your prompt, example inputs, assumptions, and test values. Review them before sharing. They do not include the rest of your workspace.
Carries this definition, its prompt, and the current preview inputs into your private set editor. Nothing is shared until you choose to share a set.
Your saved calculators
Up to 30 definitions. Export a copy before clearing browser data.
Your first reusable calculator starts above.