🔧 測繪工程工具

↔️ 兩點空間距離Coordinate Distance 3d 三維座標距離線上計算器，輸入兩點的 x/y/z 求得空間直線距離，用於工程測量與建模，純前端執行。Coordinate Distance 3d - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... ⚙️ 全站儀測距斜距/平距/高差換算Convert 33 全站儀測距換算器：將斜距按豎直角換算為平距與高差，用於全站儀測量資料處理與高程傳遞。Convert 33 - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ... ⚙️ 變形（監測/週期/分析）圖表Analysis Cycle 變形監測週期分析圖表工具：按週期錄入監測點變形資料，繪製趨勢圖表並統計變化量，輔助工程變形監測與預警。Analysis Cycle - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⭕ 圓曲線要素Circular Curve 圓曲線要素線上計算器，輸入半徑、轉角與緩和曲線長求得 T（切線）、L（曲線）、E（外距）、M（中點）等，用於道路設計，純前端。Circular Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 地籍（界址/面積/權屬）調查Area 24 地籍調查測算工具：按界址點座標或邊長計算地塊面積，並核對權屬資訊，用於地籍調查與不動產測繪。Area 24 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📍 座標轉換Coordinate Convert 大地座標（經緯度）→ 高斯-克呂格平面座標（CGCS2000 橢球），含帶號、中央子午線與子午線收斂角Coordinate Convert - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Sur... ⬡ 多邊形閉合面積Area Coordinates 座標法多邊形面積線上計算器，輸入頂點順時針或逆時針座標序列用鞋帶公式求閉合面積，用於地籍與土方，純前端。Area Coordinates - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🔄 平面點繞原點旋轉Coordinate Rotation 平面座標旋轉線上計算器，輸入點座標與旋轉角求得繞原點旋轉後的新座標，用於測量與圖形變換，純前端執行。Coordinate Rotation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 房產（面積/產權/產籍）測量Area 25 房產面積測量工具：按戶型尺寸或分戶界址計算房產建築面積，輔助產權與產籍測繪核算。Area 25 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 拋物線形豎曲線Vertical Curve Elev 豎曲線高程線上計算器，基於拋物線形豎曲線輸入樁號與引數求得設計高程，用於道路縱斷面設計，純前端執行。Vertical Curve Elev - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🔺 正弦定理Triangulation Side Calculator 三角測量邊長線上計算器，輸入已知邊與兩角用正弦定理求得未知邊長，用於控制測量與放樣，純前端執行。Compute a triangle side by the law of sines from known side and opposite angles. Free online tool on ToolBox — 100% client-side, no data uploaded, no insta... 🔍 比例尺換算Scale Converter 輸入地形圖比例尺（如 1:1000）與圖上長度或實地距離，自動換算對應的實際距離或圖上長度，用於讀圖、放樣時圖上尺寸與實地尺寸的快速互換。Scale Converter - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Survey... 📐 水準測量平差Leveling Adjustment Calculator 輸入各測段高差觀測值及測站數（或距離），按測站數比例分配閉合差，計算平差後高差。Adjust differential leveling observations. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... 📐 水準測量計算Leveling Calc 輸入水準路線各測段觀測高差，推算各點高程並計算路線閉合差，按規範檢核容許閉合差是否合格，用於工程與地形水準測量的平差與成果整理。Leveling Calc - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ... 📏 測距儀斜距 → 水平距離Horizontal Distance 輸入測距儀測得的斜距 L 與豎直角 α，按 D=L·cosα 將斜距歸算為水平距離，用於全站儀、測距儀觀測資料由斜距向平距的換算。Horizontal Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 由兩點座標反算方位角Bearing from Coordinates 輸入北向增量 ΔN 與東向增量 ΔE，按 atan2 反算方位角（0–360°），用於導線計算。Bearing from Coordinates - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mappin... 📍 由兩點平面座標求水平距離Coordinate Distance 2d 輸入兩點平面座標 (x₁,y₁) 與 (x₂,y₂)，按距離公式求水平距離，用於測量與放樣。Coordinate Distance 2d - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... 📦 由兩端與中截面面積求稜臺體積Prismoidal Volume 輸入兩端面積 A₁、A₂、中截面 A_m 與間距 L，按稜臺公式求體積，適用於土石方算量。Prismoidal Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📦 由兩端斷面面積與間距求土方量End Area Volume 輸入相鄰兩斷面面積 A₁、A₂ 與斷面間距 L，按平均斷面法 V=(A₁+A₂)/2·L 計算兩斷面間土方體積，廣泛用於道路、渠道的土方量估算。End Area Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⌒ 由半徑與轉角求中弦垂距Middle Ordinate Curve 輸入圓曲線半徑 R 與路線轉角 Δ（度），按 M=R·(1−cos(Δ/2)) 計算中點垂距（中弦垂距），用於平曲線要素計算與曲線中點位置的放樣校核。Middle Ordinate Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping t... ⌒ 由半徑與轉角求切線長Tangent Length Curve 輸入圓曲線半徑 R 與路線轉角 Δ（度），按 T=R·tan(Δ/2) 計算切線長，用於道路平曲線要素計算，確定曲線起點、終點到路線交點的距離。Tangent Length Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping to... ⌒ 由半徑與轉角求外距External Distance Curve 輸入圓曲線半徑 R 與路線轉角 Δ（度），按 E=R·(sec(Δ/2)−1) 計算曲線外距，即交點到曲線中點的垂直距離，用於平曲線要素計算與路線設計的超高佈置。External Distance Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping... ⌒ 由半徑與轉角求曲線弦長Chord Length Curve 輸入圓曲線半徑 R 與路線轉角 Δ（度），按 C=2R·sin(Δ/2) 計算曲線弦長，用於道路、鐵路平曲線要素計算中的弦長量取與放樣。Chord Length Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📏 由後視前視累計求待定點高程Reduced Level Bsfs 輸入已知點高程 BM、後視累計 BS 與前視累計 FS，按 RL=BM+ΣBS−ΣFS 求待定點高程。Reduced Level Bsfs - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 由座標增量(Δx,Δy)求方位角Bearing Azimuth 輸入兩點的北向、東向座標增量（ΔN、ΔE），用 α=atan2(ΔE,ΔN) 反算兩點連線方位角並歸算到 0–360°，用於測量中由座標差求邊方向的方位角計算。Bearing Azimuth - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 由坡度與曲線長求豎曲線上任一點高程Grade Intersection Elev 輸入前坡 g₁、後坡 g₂、曲線長 L 與距起點距離 x，求相對高程 y。Grade Intersection Elev - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping... ⛰️ 由底面積與高求錐體體積Earthwork Pyramid Volume 輸入錐體底面積 A 與高度 h，按 V=A·h/3 計算錐體體積，適用於土石方、填方中近似為錐形的堆體體積估算，如棄土堆、料堆方量快速計算。Earthwork Pyramid Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mappin... 📉 由斜距與垂直角求水平距Horizontal from Slope 輸入斜距 S 與垂直角 v（度），按 H=S·cos(v) 計算對應的水平距離，用於三角高程測量與地形測繪中由斜邊距離換算平距的工程計算。Horizontal from Slope - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping t... 📏 由橫基尺長度與夾角求距離Subtense Distance 輸入橫基尺長度 c 與經緯儀所對夾角 θ（度），按 D=c/tan(θ) 計算待測點距離，用於無測距儀時藉助橫基尺與角度測量的間接測距方法。Subtense Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🎯 由距離與方位角求座標增量Bearing to Offset 輸入邊長距離 D 與方位角 α（度），按 N=D·cosα、E=D·sinα 計算該邊的北向與東向座標增量，用於導線測量中由已知點和邊長方位角推算待定點的座標。Bearing to Offset - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surv... 🥞 相鄰斷面體積Cut Fill Volume 平均斷面法土方量線上計算器，輸入相鄰兩斷面面積與間距求得挖填方體積，用於道路與場地平整算量，純前端執行。Cut Fill Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 縱坡 = 高差 / 平距Slope Percentage 輸入兩點間高差 h 與水平距離 d，按 坡度%=(h/d)×100 計算縱坡百分比，也可換算為坡度角，用於道路、管線縱坡設計與場地排水的坡度表達。Slope Percentage - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🎯 視距絲間隔法Stadia Distance 視距測量距離線上計算器，基於視距絲間隔與乘常數、高差角求得水平距離與高差，用於地形測繪，純前端執行。Stadia Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 角度 ↔ 百分比Grade Angle 坡度角換算器：輸入坡度角度或百分比，按 百分比 = tan(θ)×100 雙向換算，用於道路與場地坡度表達。Grade Angle - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 角度測量計算Calc Angle 2 支援方向觀測法與複測法，計算角度均值、精度指標並檢核盤左盤右差，用於控制測量。Calc Angle 2 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying &... 📏 距離計算Distance Calculate 平面座標正算與反算：由兩點座標求距離與方位角，或由一點、距離、方位角求另一點Distance Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveyi... ⚙️ 距離（斜距/平距/高差）改正Distance 距離改正計算器：對斜距按相關改正求平距與高差，用於控制測量與地形測圖的距離歸算。Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 道路（中線/橫斷面/放樣）計算Road Alignment / Cross-Section / Setting-Out Calculator 道路中線放樣計算工具：按道路中線、橫斷面設計引數計算放樣座標與高程，輔助道路工程施工測量。Compute road centerline, cross-sections and setting-out. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveyin... ↕️ 閉合水準路線Elevation Diff 閉合水準路線計算器：按後視減前視累加求高差 Σh = Σ(後視−前視)，用於水準測量平差與高程傳遞。Elevation Diff - compare online, free and clear. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Ma... 🗺️ 面積計算Area Calculate 依次輸入多邊形各頂點座標（可動態增減頂點），用鞋帶公式（Shoelace）計算閉合多邊形的面積與周長，並在介面上即時繪出圖形，適合地塊、宗地面積量算。Area Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ...