Calculator
What the WACC Calculator does
WACC Calculator: calculates WACC %, Equity Weight % and Debt Weight % from Equity Value (E), Debt Value (D) and Cost of Equity %. Example: equity value (E) 7000000 ₹, debt value (D) 3000000 ₹ and cost of equity % 12 gives WACC % 10.20%.
The WACC Calculator turns Equity Value (E), Debt Value (D), Cost of Equity % and Cost of Debt % into WACC %, Equity Weight % and Debt Weight %. Everything recomputes live, which makes it easy to test a few scenarios in a row.
A quote sounds reasonable until you total the interest over the full term. The WACC Calculator exists to take that particular chore off your hands.
Your data stays on your machine. Once the page has loaded you could disconnect entirely and it would still work.
Everything needed to verify a result is further down: the fields, the method and one fully worked example.
What do the WACC Calculator fields mean?
The WACC Calculator uses 5 inputs. It opens with a complete example loaded, which is usually the quickest way to understand what a field means.
| Field | What to enter | Default |
|---|---|---|
| Equity Value (E) | measured in ₹; accepts 0 to 1000000000000 | 7000000 |
| Debt Value (D) | measured in ₹; accepts 0 to 1000000000000 | 3000000 |
| Cost of Equity % | accepts 0 to 50 | 12 |
| Cost of Debt % | accepts 0 to 50 | 8 |
| Corporate Tax Rate % | accepts 0 to 50 | 25 |
How does the WACC Calculator work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same calculation.
Bad input produces an error, never a confident-looking wrong answer.
Worked example
These are the values the WACC Calculator loads by default, and the result it produces from them. The numbers below come straight from the default inputs, so you can verify them against the live tool.
| Equity Value (E) | 7000000 ₹ |
|---|---|
| Debt Value (D) | 3000000 ₹ |
| Cost of Equity % | 12 |
| Cost of Debt % | 8 |
| Corporate Tax Rate % | 25 |
| WACC % | 10.20% |
|---|---|
| Equity Weight % | 70.00% |
| Debt Weight % | 30.00% |
How to use it
- Key in Equity Value (E) in ₹ (0 to 1000000000000).
- Fill in Debt Value (D) in ₹ (0 to 1000000000000).
- Type Cost of Equity % (0 to 50).
- Enter Cost of Debt % (0 to 50).
- Set Corporate Tax Rate % (0 to 50).
- It runs on every change, so there is no moment where the screen is out of date.
- Read WACC %, Equity Weight % and Debt Weight % in the results panel.
- To keep the result, either copy the link or print the page. Both preserve what is on screen.
What this tool does not do
- Rates are treated as fixed for the whole term; a floating rate will change the outcome.
- Fees, processing charges and taxes are not included unless there is a field for them.
- Precision beyond what the inputs justify is not meaningful, however many digits appear.
- A number that passes validation has been checked for plausibility, not for correctness.
Frequently asked questions
Enter Equity Value (E) in ₹ and Debt Value (D) in ₹. Each field states its unit next to the input, and outputs are labelled the same way.
Equity Value (E) accepts 0 to 1000000000000 ₹. The range is enforced before the calculation runs, so a bad entry never reaches the formula.
With the values loaded when the page opens, WACC % comes out as 10.20%. Try changing one value. The answer refreshes without a page reload.
No. There is no account, no session and no storage. The values exist only while the tab is open.
It is free with no conditions: no sign-up, and no limit on how often you use it.
Accurate arithmetic, indicative answer. It is at its most useful when you run it two or three times to see which input the result is genuinely sensitive to.