Calculate VAT amount and price including or excluding VAT for any rate.

Calculate GST (Goods and Services Tax) amount, add GST to a price, or remove GST from a pr

Add, subtract, multiply and divide fractions. Get results in simplified form with step-by-

Calculate total and per-serving calories by adding ingredients with their quantities.

Add or subtract any number of days from a date to find a future or past date instantly.

Add, subtract, multiply 2×2 and 3×3 matrices and calculate the determinant instantly.

Calculate network address, broadcast address, host range, and number of hosts for any IPv4