A 3-VALUE SYSTEM THAT ALWAYS SOLVES ITSELF
A calculator and converter for people tired of tools that don't add up. Convert Net, Gross, and Rate Amount — instantly, in any direction. No mode switching. No rounding drift.
Try it free in your browser. Works instantly — no account required.
Mobile apps coming soon with offline mode, widgets, and more.
INSTANT
Type anything. Get all three values instantly. No mode switching.
ACCURATE
Smart rounding eliminates floating-point garbage. Results you can trust.
STABLE
Anchor keeps your starting value stable. No unexpected drift.
FEATURES
Powerful features, instant results, built for precision
Solve from any starting point
Enter Before, After, or Tax/Discount amount and get the other values instantly.
Instant Tax, VAT & Sales Tax
Apply or reverse tax calculations instantly with a fixed rate.
Discounts & Pricing
See original price, final price, and discount amount together.
Live Real-Time Results
No Calculate button. No waiting. Every value updates as you type.
Works Both Ways
Add or subtract the same percentage rate from either side of the calculation.
Precision Rounding You Can Trust
Balanced rounding prevents results from drifting by a cent.
Solve real-world percentage problems instantly
Tax calculations (fixed rate system)
- Apply VAT or sales tax instantly
- See price, tax, and base value together in real time
- Works in both directions (add or subtract tax)
Example:
- Set fixed rate: 15%
- You enter: Gross = 900.00
- System returns: Net = 782.61, Gross = 117.39
Discounts & pricing
- Apply any percentage discount instantly
- See original price, final price, and discount amount together
- Reverse-calculate from any known value
Example:
- Set fixed rate: 28%
- You enter: Price = 900.00
- System returns: Discount sale = 648.00, Discount = 252.00
Reverse solving (missing value finder)
- Start from any known value
- Solve the remaining two values instantly
- No formulas or manual rearranging
Example:
- Set fixed rate: 15%
- You enter: Tax = 117.39
- System returns: Net = 782.61, Gross = 900.00
Who It's For
Every percentage problem. One tool.
Freelancers
Calculate your net after platform fees and taxes — instantly
Accountants
Sanity-check invoices and receipts without spreadsheet formulas
Purchasing Officers
Find the pre-tax price from any total in one step
Commerce Sellers
Set prices that land where you want after commissions
Small Businesses
Generate quotes with precise tax breakdowns in seconds
Sales Teams
Quote all-in prices and see your commission in real time
Individuals
Split bills, calculate tips, understand any receipt
Tax Payers
Verify your VAT/GST calculations before filing
DO THE MATH
Your last calculator. Ever.
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