How to spell 1,000,000,000 1,000,000,000 is spelled one billion in English. Hear it & practice → Related numbers1 one 100,000,000 one hundred million Spelling guidesMoney amountsHow to write dollars in words.Writing a checkStep-by-step for US checks.Ordinals (1st, 2nd…)First, second, third, and beyond.All guidesDates, phones, fractions, decimals… ← 100,000,000All numbers1,234,567,890 →