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Evan Miller

I'm a software engineer who builds web applications and data tools. I personally implement and verify the formula and logic behind every calculator on Launch Hub. I publish them as free online tools so anyone can get an answer without signing up or paying.

Meat Doneness Calculator

This tool helps home cooks determine the ideal internal temperature and cooking time for different types of meat. It accounts for meat type, cut, and desired doneness level to deliver accurate, practical results. Use it to avoid overcooking or undercooking…

Wine Label Shelf Life Guide

This tool helps home cooks and wine drinkers estimate how long unopened and opened wine stays fresh based on label details and storage. Use it to avoid wasting wine and plan serving times for meals or gatherings. It covers common…

Schedule Coverage Calculator

This schedule coverage calculator helps small business owners, e-commerce sellers, and trade teams estimate how many staff hours are needed to cover operating hours. It factors in shift lengths, breaks, and overlap requirements for retail, warehouse, or customer support operations.…

Gold Coin to USD Value Calculator

This tool converts in-game gold coin amounts to estimated USD values for popular video and tabletop games. It helps gamers, streamers, and game designers quickly assess virtual currency worth. Use it to compare in-game earnings, plan purchases, or balance game…

Discount Price Calculator

This tool helps e-commerce sellers, small business owners, and traders calculate final prices after applying discounts. It supports multiple discount types and shows full margin and savings breakdowns. Use it to set competitive pricing without eroding your profit margins.

Wire Transfer Exchange Rate Loss Calculator

This tool helps individuals estimate exchange rate losses and hidden fees on international wire transfers. It is designed for personal budget planning, cross-border bill payments, and managing international savings. Enter your transfer details to see a full breakdown of all…