What's New

Complete a 12-point anti-inflammatory diet score to see whether your weekly pattern leans more plant-forward or more processed-food heavy.

See the theoretical growth ceiling under continuous compounding, then compare the same lump sum with annual, monthly, and daily schedules.

Find when Easter Sunday falls in any year, compare Western and Orthodox Easter, and see Ash Wednesday, Good Friday, Ascension, and Pentecost at a glance.

Calculate soft-boiled, jammy, or hard-boiled egg time from egg size, fridge-cold vs room-temperature start, and altitude, with an ice-bath timing sheet.

See your glucose-ketone index from blood glucose and ketones, compare the ratio with common bands, and understand what one reading can and cannot tell you.

Calculate the Lerner Index from price and marginal cost, then review markup per unit, cost share of price, and the implied elasticity benchmark.

Convert a letter grade into GPA points and an approximate percentage range using standard, straight-letter, or custom grading scales.

Estimate total gross career earnings from starting salary, annual raises, and years to retirement, with flat-pay comparison and yearly schedule.

Convert line-height between unitless, px, em, rem, and percentage values, then preview text spacing and interpret whether it reads tight, balanced, or loose.

Convert electric charge per unit length between metre-, centimetre-, and millimetre-based units, with full supported-unit equivalents and SI base-value context.

Convert electric current per unit length between metre-, centimetre-, and millimetre-based units, with full supported-unit equivalents and base A/m context.

Fetch the latest ECB benchmark rate for a currency pair, compare the direct and reciprocal quote, and reference quick conversion rows.

Estimate the remaining balance on a fixed-rate loan after a chosen number of payments, with payoff progress and next-payment breakdown.

Estimate payoff time, total interest, and repayment checkpoints for a fixed monthly payment on a loan balance.

Estimate future long-term care costs, the savings target needed by care start, and any funding gap in your current plan.

Compare the after-tax cash option versus the discounted after-tax annuity stream for a lottery jackpot.

Estimate lottery withholding, final federal and state tax, and the likely take-home gap between the initial check and your final tax bill.

Convert luminous flux and solid angle into candela, with beam-coverage interpretation and reference rows for common solid angles.

Convert luminous flux and illuminated area into lux, with coverage interpretation and reference rows for common surface sizes.

Project retirement balance from current savings, contributions, and investment growth.

Estimate balanced roof snow load, slope-adjusted load, and optional drift surcharge from ground snow load, roof geometry, and US ASCE-style factors.

Calculate 2024 US federal income tax by bracket.

Evaluate a real-number expression, convert it to a non-negative magnitude, and see the distance from zero and sign before absolute value is applied.

Convert oven temperatures and cook times into air fryer settings, then adjust the starting point for food type, frozen food, basket load, and crispiness.