[{"data":1,"prerenderedAt":118},["ShallowReactive",2],{"page-en-root-tools/maintenance-calculator":3},{"content":4},{"id":5,"title":6,"body":7,"description":78,"extension":79,"heroDark":80,"keywords":81,"meta":82,"navigation":109,"path":110,"seo":111,"sitemap":112,"stem":116,"__hash__":117},"content/tools/maintenance-calculator.md","Maintenance Calculator: MTBF, MTTR, OEE & More",{"type":8,"value":9,"toc":75},"minimark",[10,15,18,61,68],[11,12],"essential-hero3-section",{"description":13,"title":14},"The maintenance KPIs reliability teams actually track — MTBF, MTTR, availability, OEE, planned-maintenance %, and schedule compliance — in one place. Pick a metric, enter your numbers, get the result instantly. No sign-up, nothing uploaded.","Free \u003Cspan class=\"kw-swipe-d\">maintenance calculator\u003C/span>",[16,17],"tools-maintenance-calculator",{},[19,20,21],"essential-content-section",{},[22,23,25,52],"template",{"v-slot:description":24},"",[26,27,28,29,33,34,37,38,33,41,44,45,33,48,51],"p",{},"These six metrics tell you whether your maintenance program is working. ",[30,31,32],"strong",{},"MTBF"," and ",[30,35,36],{},"MTTR"," measure reliability and how fast you recover. ",[30,39,40],{},"Availability",[30,42,43],{},"OEE"," measure how much useful output you're actually getting. ",[30,46,47],{},"Planned-maintenance %",[30,49,50],{},"schedule compliance"," measure whether you're ahead of failures or chasing them.",[26,53,54,55,60],{},"The numbers only mean something when they're fed by clean history. UNIO24 logs every work order, failure, and repair against the asset automatically — so MTBF, MTTR, and the rest come straight from your records instead of a spreadsheet someone forgot to update. See the ",[56,57,59],"a",{"href":58},"/product/maintenance-and-repair","maintenance and repair module"," for how the data is captured.",[62,63],"essential-faq-section",{":contactLink":64,":faqs":65,"description":66,"title":67},"{\"text\":\"Want these KPIs tracked automatically?\",\"callActionText\":\"Talk to sales\",\"url\":\"/contacts\"}","[{\"title\":\"Reliability metrics\",\"items\":[{\"question\":\"What is MTBF and how is it calculated?\",\"answer\":\"Mean Time Between Failures is the average operating time between breakdowns: total operating hours divided by the number of breakdowns. A higher MTBF means a more reliable asset. Track it over time — a rising MTBF after a maintenance change tells you the change worked.\"},{\"question\":\"What is MTTR and what counts as good?\",\"answer\":\"Mean Time To Repair is total repair time divided by the number of repairs — the average time to get an asset back online. Lower is better. There's no universal target; what matters is the trend and how it compares across similar assets. Falling MTTR usually points to better spare-parts availability or clearer procedures.\"},{\"question\":\"How are MTBF and MTTR different?\",\"answer\":\"MTBF measures how often things break (reliability); MTTR measures how quickly you fix them (maintainability). You want MTBF high and MTTR low. Together they drive availability — frequent failures or slow repairs both pull availability down.\"}]},{\"title\":\"Effectiveness metrics\",\"items\":[{\"question\":\"How is asset availability calculated?\",\"answer\":\"Availability is planned production time minus unplanned downtime, divided by planned production time, times 100. Above 90% is generally strong for most equipment; below 80% usually signals a reliability or response problem worth investigating.\"},{\"question\":\"What is OEE and what is a good score?\",\"answer\":\"Overall Equipment Effectiveness multiplies Availability × Performance × Quality into a single percentage. 85% or above is considered world-class, 60–85% is typical, and below 60% means significant losses. Because it's a product of three factors, a weak score in any one drags the whole number down.\"}]},{\"title\":\"Process metrics\",\"items\":[{\"question\":\"What is planned maintenance percentage (PMP)?\",\"answer\":\"PMP is planned maintenance hours divided by total maintenance hours, times 100. It shows how proactive your program is. Best-in-class teams run around 80% planned to 20% reactive — the more reactive your mix, the more you're paying in downtime and rush repairs.\"},{\"question\":\"What does schedule compliance measure?\",\"answer\":\"Schedule compliance is the share of scheduled work orders completed on time — on-time completions divided by total scheduled work, times 100. Above 90% is healthy. Low compliance often means the schedule is unrealistic or reactive work keeps crowding out planned work.\"}]}]","How each maintenance KPI is calculated and what a healthy number looks like.","Maintenance calculator — common questions",[69,70],"essential-call-to-action-section",{":primaryButton":71,":secondaryButton":72,"subtitle":73,"title":74},"{\"text\":\"Start for Free\",\"url\":\"https://my.unio24.com/signup?utm_source=unio24-site&utm_medium=referral&utm_campaign=tools&utm_content=tools-maintenance-calculator\"}","{\"text\":\"Book a Demo\",\"url\":\"/demo\"}","UNIO24 logs every work order, failure, and repair against the asset — so MTBF, MTTR, availability, and the rest update themselves. Start free with 50 assets.","Stop calculating KPIs by hand",{"title":24,"searchDepth":76,"depth":76,"links":77},2,[],"Free maintenance KPI calculator. Instantly compute MTBF, MTTR, asset availability, OEE, planned-maintenance %, and schedule compliance. No sign-up.","md",false,"maintenance calculator, MTBF calculator, MTTR calculator, OEE calculator, asset availability, planned maintenance percentage, schedule compliance, maintenance KPIs",{"schemaOrg":83},[84,95],{"@type":85,"name":86,"applicationCategory":87,"operatingSystem":88,"description":89,"url":90,"offers":91},"WebApplication","UNIO24 Maintenance Calculator","BusinessApplication","Any","Free browser-based maintenance KPI calculator for MTBF, MTTR, availability, OEE, planned-maintenance percentage, and schedule compliance.","https://unio24.com/tools/maintenance-calculator",{"@type":92,"price":93,"priceCurrency":94},"Offer","0","USD",{"@type":96,"itemListElement":97},"BreadcrumbList",[98,103,106],{"@type":99,"position":100,"name":101,"item":102},"ListItem",1,"Home","https://unio24.com/",{"@type":99,"position":76,"name":104,"item":105},"Tools","https://unio24.com/tools",{"@type":99,"position":107,"name":108,"item":90},3,"Maintenance Calculator",true,"/tools/maintenance-calculator",{"title":6,"description":78},{"loc":110,"lastmod":113,"changefreq":114,"priority":115},"2026-06-27","monthly",0.7,"tools/maintenance-calculator","AM38bBFxpkzV3Yd_9ENdgm2PGb7LGa1KQ0kXuphEIqQ",1784526836321]