About RunCalcs

RunCalcs provides 92+ free calculators across 10 categories. Every tool is fast, accurate, and requires no signup or account.

10 Categories

• 🏃 Pace & Speed — 10 calculators
• 🏁 Race Prediction — 10 calculators
• 📋 Training — 10 calculators
• 📏 Distance — 10 calculators
• 🍌 Calories & Nutrition — 10 calculators
• 👟 Shoe & Gear — 8 calculators
• 🩹 Injury & Recovery — 8 calculators
• 🗓️ Race Planning — 10 calculators
• 🏟️ Track & Field — 8 calculators
• 🔢 Running Maths — 8 calculators

Our Commitment

• 1.Always free — no signup, no paywall, no limits.
• 2.Accurate formulas — based on established standards and proven calculations.
• 3.Works everywhere — phone, tablet, desktop. No app to install.
• 4.No tracking — we use minimal analytics. Your data stays on your device.