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Climbing Calculators Based on UIAA Standards
Convert climbing grades between French, Yosemite and UIAA systems. Calculate rope length for any route and find out when to retire your rope, harness, helmet, carabiners, and slings. All based on UIAA Safety Commission guidelines.
Convert grades →Tools
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Grade Converter
Convert between French sport grades, Yosemite Decimal System (YDS), UIAA, and Hueco V-scale bouldering grades instantly.
FrenchYDSUIAAHueco V-scale
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Rope Length Calculator
Calculate the minimum rope length needed for any climbing route. Enter route length and climbing style to get the recommended rope size.
SportTradMulti-pitchFormula
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Rope Retirement Calculator
Find out when to retire your climbing rope based on UIAA guidelines. Enter purchase year, usage frequency, and fall history to get a safety verdict.
UIAA guidelinesAge checkFall historyVerdict
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Harness Retirement Calculator
Find out when to retire your climbing harness based on UIAA Standard 105. Enter purchase year, usage frequency, and impact history.
UIAA 105Age checkImpact historyVerdict
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Helmet Retirement Calculator
Find out when to retire your climbing helmet based on UIAA 106 / EN 12492. Retire after any impact. EPS foam is a one-use energy absorber.
UIAA 106EN 12492Impact checkVerdict
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Carabiner Retirement Calculator
Find out when to retire your carabiners based on UIAA Standard 121. Check age, shock load history, gate function, and rope wear grooves.
UIAA 121Shock loadGate checkVerdict
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Fall Factor Calculator
Calculate fall factor and peak impact force on rope and climber. Based on UIAA 101 norm.
UIAAFall factorImpact force
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Anchor Load Calculator
Calculate force on each anchor point based on angle between strands. Based on UIAA geometry.
UIAAAnchorV-angle
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Sling & Quickdraw Retirement Calculator
Find out when to retire your slings and quickdraws based on UIAA Standard 104. Separate guidance for Nylon vs Dyneema/Spectra.
UIAA 104NylonDyneemaVerdict