Other formulas

Enter Image width, Image height, Box width, and Box height for the Aspect Fit Calculator; use finite values in the indicated domain. The calculator reports Fitted width, Fitted height, and Scale: Uniform scale so the image fits in the box. Compare like-for-like units and account for rounding in the displayed values.

t = (size_MB × 8) / speed_Mbps.

MPG = distance / gallons; L/100 km ≈ 235.215 / MPG.

Needed = (target×total − current×done) / remaining.

Grade = Σ(scoreᵢ × weightᵢ) / Σ weightᵢ.

4.0 letter map

Plus/minus policies differ by school (±0.3 common).

cm ↔ inches with factor 2.54; then split inches into feet.

mask = 1s for the prefix bits; network = addr ∧ mask.

Choose a charset preset or enter a custom size, then multiply by length.

Due date ≈ LMP + 280 days; gestational age is days since LMP.

Tokenize whitespace for words; count sentence terminators and newlines.

Enter Bill, Tip %, and People for the Tip For Groups Calculator; enter percentage fields as percentage points. The calculator reports Tip, Total, and Per person: Tip percent of the bill, split evenly. People must be a positive whole number, and the split does not account for uneven orders.

Enter Price 1, Qty 1, Price 2, and Qty 2 for the Unit Price Compare Calculator; use finite values in the indicated domain. The calculator reports Unit price 1, Unit price 2, Cheaper pack (1 or 2), and Savings per unit: Unit price = package price ÷ quantity. Both quantities must be positive and expressed in the same unit for a fair comparison.