Historical tools
Historical Tools & Timeline
A searchable timeline of world history from the first writing in 3500 BCE to today — with converters for ancient money, units and calendars, and in-depth articles on how people actually lived, earned and spent.
Frequently asked questions
What historical tools does QuickConverts offer?
Eight free tools — ancient currency and unit converters, a Roman numeral converter, historical calendar and currency calculators, an archaeological age calculator and an inflation calculator — plus a searchable world history timeline and in-depth articles on Roman prices, medieval money, the Potosí silver flood, industrial-era living standards and the end of the gold standard.
How accurate are ancient measurements and conversions?
Ancient units varied by city and era — a cubit ranged from about 44 to 53 cm depending on the culture. The tools use the most commonly cited standard values and note where estimates are approximate.