Feature

Custom Variables

Define reusable values once and insert them across supported calculators to reduce repetitive input.

Key Benefits

Store constants you use all the time — a tax rate, an inflation assumption, your hourly rate.

Insert the same value into any calculator, so every scenario uses identical assumptions.

Change a value once and every future calculation picks up the update.

Bulk-import variables from a CSV file when you have many to set up.

How It Works

1

Open the Variables tab in the right-hand panel and click Create.

2

Give each variable a clear name (like tax_rate) and a numeric value.

3

In any input field showing the variable icon, click it to insert a stored value.

4

You can also create one on the fly from global search: type >var rate = 5.

Build Your Variable Library

Open CalcTrail and create reusable variables for your recurring values.

Create a Variable

Frequently Asked Questions

Variables are global to your profile, so a value like tax_rate stays available no matter which workspace you are working in.
Yes. Use the Import button in the Variables panel to load many variables at once from a CSV file.
Input fields that support variables show a small variable icon. Click it, pick your variable, and its current value is inserted into the field.
Guests can create up to 25 variables; a free account raises the limit to 100.
No. Inserting a variable copies its current value into that field — it is not a live link. Changing the variable afterward only affects the next time you insert it; fields you already filled in keep the number they got at the time.